Updated on 2022/05/06

写真a

 
YOSHIHASHI Sachiko
 
Organization
Administrative Support Organizations Nuclear Material Control Facility Associate professor
Graduate School
Graduate School of Engineering
Title
Associate professor

Degree 1

  1. 博士(工学) ( 2001.3   大阪大学 ) 

Research Interests 5

  1. ホウ素中性子補足療法

  2. 加速器中性子源

  3. リチウム

  4. 放射線計測

  5. 核融合

Research Areas 4

  1. Energy Engineering / Nuclear engineering  / BNCT

  2. Energy Engineering / Nuclear fusion  / 核融合材料

  3. Energy Engineering / Nuclear engineering  / 放射線計測

  4. Energy Engineering / Nuclear fusion  / 液体金属流動

Current Research Project and SDGs 3

  1. 核融合炉開発に向けた加速器型中性子源の開発

  2. 核融合炉でコミッショニングに向けた誘導放射能の評価

  3. ホウ素中性子捕捉療法のための加速器型中性子源の開発

Research History 3

  1. Nagoya University   Associate professor

    2016.4

  2. Fukui University of Technology   Associate professor

    2015.4 - 2016.3

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    Country:Japan

  3. Osaka University   Assistant Professor

    2005.4 - 2015.3

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    Country:Japan

Education 1

  1. Osaka University   Graduate School, Division of Engineering

    - 2001.3

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    Country: Japan

Professional Memberships 4

  1. 日本中性子捕捉療法学会   正会員

  2. プラズマ・核融合学会   会員

  3. Atomic Energy Society of Japan

  4. The Laser Society of Japan

Committee Memberships 10

  1. 原子炉安全専門審査会   審査委員  

    2016.6   

  2. 核燃料安全専門審査会   審査委員  

    2016.6   

  3. 日本原子力学会 ダイバーシティ推進委員会   委員  

    2013.4   

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    Committee type:Academic society

  4. プラズマ核融合学会編集委員会   委員  

    2017.7 - 2019.6   

  5. もんじゅ安全・改革検証委員会   委員  

    2015.8 - 2017.3   

  6. 文部科学省核融合科学技術委員会   原型炉開発総合戦略タスクホース委員  

    2020   

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    Committee type:Government

  7. 国立研究開発法人日本原子力研究開発機構 分岐返還技術研究専門部会   専門委員  

    2020   

  8. 国立研究開発法人科学技術研究開発機構 核融合中性子源専門部会   専門委員  

    2020   

  9. 鳥取県原子力安全顧問   顧問  

    2018.11   

  10. 日本原子力学会 教育委員会   委員  

    2018.10   

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    Committee type:Academic society

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Awards 3

  1. ベストプレゼンター賞

    2017.9   第14回日本中性子捕捉療法学会  

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  2. プラズマ・核融合学会賞 技術進歩賞

    2016.11   プラズマ・核融合学会  

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    Country:Japan

  3. 第45回日本原子力学会賞 技術開発賞

    2015.3   日本原子力学会  

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    Country:Japan

 

Papers 47

  1. A comprehensive evaluation of the thermal neutron detection efficiency by a single crystal CVD diamond detector with a LiF thermal neutron converter

    Kobayashi M.I., Yoshihashi S., Ogawa K., Isobe M., Sangaroon S., Kamio S., Fujiwara Y., Osakabe M.

    Fusion Engineering and Design   Vol. 179   2022.6

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Fusion Engineering and Design  

    Thermal neutron detection efficiency of the single crystal CVD diamond detector (SDD) equipping 1.9 μm-thick 6LiF thermal neutron converter, which induces the energetic ions through the 6Li(n,α)3H reaction, was evaluated comprehensively using a charge-integral based pulse shape discrimination (PSD) method and radiation transport calculation by PHITS. The PSD method applied in this work successfully separated the pulses induced by energetic tritons, alpha particles and other types of radiation. The detection efficiency of tritons was consistent with the radiation transport calculation, although that of alpha particles was lower than the estimation. The overall thermal neutron detection efficiency was obtained by summing detection efficiencies of tritons and alpha particles. Approximately 29% of 6Li(n,α)3H reaction occurred in an effective 1.9 μm-thick 6LiF thermal neutron converter could be detectable as the pulses of tritons (∼ 73%) and alpha particles (23%).

    DOI: 10.1016/j.fusengdes.2022.113117

    Scopus

  2. Neutron yield calculation of p-Li thick target by using PHITS with JENDL-4.0/HE and ENDF/B-VII for BNCT application

    Nishitani Takeo, Tanagami Yuuki, Yoshihashi Sachiko, Tsuchida Kazuki, Yamazaki Atsushi, Uritani Akira

    JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY   Vol. 59 ( 5 ) page: 605 - 613   2022.5

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Journal of Nuclear Science and Technology  

    The lithium thick target bombed with low-energy protons is one of the promising neutron sources for the Boron Neutron Capture Therapy (BNCT). The benchmark calculations of the neutron Thick Target Yield (TTY) of the lithium target are conducted by the Particle and Heavy Ion Transport Code System PHITS with ACE formatted files of JENDL-4.0/HE and ENDF/B-VII and the DROSG-2000 code for the incident proton energy of around 3 MeV. Also, neutron TTY of the lithium thick target with a titanium window is evaluated for the Nagoya University Accelerator-driven Neutron Source (NUANS). Finally, the TTY evaluated with PHITS is applied for the neuron transport calculation for the Beam Shaping Assembly (BSA) of NUANS. As a conclusion, it is considered that ENDF/B-VII is more feasible than JENDL-4.0/HE for the 7Li(p,n)7Be reaction around 3 MeV of the proton energy.

    DOI: 10.1080/00223131.2021.1996297

    Web of Science

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  3. Neutron yield calculation of thin and thick d-D targets by using PHITS with frag data table

    Nishitani Takeo, Yoshihashi Sachiko, Ogawa Kunihiro, Miwa Misako, Matsuyama Shigeo, Uritani Akira

    JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY   Vol. 59 ( 4 ) page: 534 - 541   2022.4

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Journal of Nuclear Science and Technology  

    The D(d, n)3He reaction is one of the common monoenergetic neutron sources. We compile the Frag Data table of D(d, n)3He reaction from the literature as an external cross-section data for PHITS. We confirm the validity of the Frag Data table by the calculation of the total and angular neutron yield calculations for an ideal deuterium thin target. Finally, PHITS with the Frag Data table is applied to the angular neutron yield and spectrum calculations of the gas target and the deuterium-loaded titanium target of the Tohoku University Fast Neutron Laboratory.

    DOI: 10.1080/00223131.2021.1981475

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  4. Evaluation of the thermal neutron sensitivity, output linearity, and gamma-ray response of optical fiber-based neutron detectors using Li-glass scintillator

    Ishikawa A., Watanabe K., Yamazaki A., Yoshihashi S., Imai S., Masuda A., Matsumoto T., Tanaka H., Sakurai Y., Nogami M., Hitomi K., Uritani A., Harano H.

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   Vol. 1025   2022.2

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    An optical fiber-based neutron detector can be used as a real-time neutron monitor for an intense neutron field. In this study, optical fiber-based neutron detectors were fabricated using Li-glass scintillator. The thermal neutron sensitivity, upper limit of the output linearity, and response to gamma rays from 60Co and Cd were evaluated. The thermal neutron sensitivity was proportional to the mass of the Li-glass scintillator, and the calibration factor was 2.06 × 10−6 and 3.18 × 10−6 cps/(n/cm 2/s)/μg for the lower-level discrimination of the peak and valley channel, respectively. The detector output linearity was confirmed to be up to nearly 2 Mcps. While evaluating the response to gamma rays, for both 60Co and Cd, the gamma-ray counting rate was found to be smaller than the uncertainty associated with counting statistics in most expected applications where the neutron counting rate was >1 kcps.

    DOI: 10.1016/j.nima.2021.166074

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  5. Benchmark Calculation of d-Li Thick Target Neutron Yield by JENDL/DEU-2020 for IFMIF and Similar Facilities

    NISHITANI Takeo, YOSHIHASHI Sachiko, KUMAGAI Kohki, KONDO Keitaro, URITANI Akira

    Plasma and Fusion Research   Vol. 16 ( 0 ) page: 1405104 - 1405104   2021.11

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society of Plasma Science and Nuclear Fusion Research  

    <p>An accelerator-based neutron source using d-Li reactions is one of the most promising neutron sources for fusion material irradiation facilities such as IFMIF, where 40 MeV deuterons bombard a liquid lithium target. The neutron yield estimation including angular neutron spectra is one of the most important issues in the design of such irradiation facilities. Recently, JAEA released deuteron nuclear data of JENDL/DEU-2020 in ACE format file for Monte Carlo codes such as MCNP, and in Frag-Data format for the PHITS code. We carry out the benchmark calculations of d-Li neutron yield by using PHITS with Frag-Data, MCNP with JENDL/DEU-2020, and MCNP/PHITS with built-in nuclear reaction models. Those calculation results are compared with experimental data. It is confirmed that PHITS with Frag Data and MCNP with JENDL/DEU-2020 reproduce well the experimental data. Those are useful for the neutron yield estimation and also the irradiation field characterization of IFMIF and similar facilities.</p>

    DOI: 10.1585/pfr.16.1405104

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    CiNii Research

  6. High heat removal technique for a lithium neutron generation target used for an accelerator-driven BNCT system

    Yoshihashi S., Tsuneyoshi T., Tsuchida K., Furuzawa D., Honda S., Watanabe K., Yamazaki A., Tsuji Y., Hamaji Y., Tokitani M., Tamura H., Sagara A., Kiyanagi Y., Uritani A.

    JOURNAL OF INSTRUMENTATION   Vol. 16 ( 4 )   2021.4

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Journal of Instrumentation  

    Accelerator-driven neutron sources have been developed worldwide for boron neutron capture therapy (BNCT) instead of nuclear reactors. Nagoya University is currently developing a compact DC accelerator driven BNCT system using a sealed lithium (Li) target. The target receives a high heat load by a proton beam, and the heat then requires efficient removal. This study developed a high-efficiency heat removal technique that uses V-shaped staggered ribs on the heat removal side of the flow channels. We performed experiments using an electron beam to confirm the technique performance. The results showed double the heat removal performance compared to the smooth surface channel. The value expected to sufficiently remove 6.6 MW/m2 of heat load provided by the proton beam at the Nagoya University neutron source for BNCT.

    DOI: 10.1088/1748-0221/16/04/P04016

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  7. First experimental verification of the neutron field of Nagoya University Accelerator-driven neutron source for boron neutron capture therapy

    Watanabe Kenichi, Yoshihashi Sachiko, Ishikawa Akihisa, Honda Shogo, Yamazaki Atsushi, Tsurita Yukio, Uritani Akira, Tsuchida Kazuki, Kiyanagi Yoshiaki

    APPLIED RADIATION AND ISOTOPES   Vol. 168   page: 109553   2021.2

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Applied Radiation and Isotopes  

    As the commissioning phase of the Nagoya University Accelerator-driven Neutron Source for boron neutron capture therapy, in-phantom thermal neutron flux measurements were conducted using a small ⁶LiF/Eu:CaF₂ scintillator detector and activation foils. The spatial distribution of the measured thermal neutron flux agreed with the Monte Carlo simulation results. Based on this comparison, the free-in-air neutron spectrum, calculated at the exit aperture, was verified and the epithermal neutron flux, at a 0.25 mA proton current, was evaluated as (1.49 ± 0.10) × 10⁷ n/(cm2 s).

    DOI: 10.1016/j.apradiso.2020.109553

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    PubMed

  8. Thermal neutron measurement by single crystal CVD diamond detector applied with the pulse shape discrimination during deuterium plasma experiment in LHD

    Kobayashi M.I.

    Fusion Engineering and Design   Vol. 161   2020.12

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.fusengdes.2020.112063

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  9. In Vitro Studies to Define the Cell-Surface and Intracellular Targets of Polyarginine-Conjugated Sodium Borocaptate as a Potential Delivery Agent for Boron Neutron Capture Therapy

    Fujimura Atsushi, Yasui Seiji, Igawa Kazuyo, Ueda Ai, Watanabe Kaori, Hanafusa Tadashi, Ichikawa Yasuaki, Yoshihashi Sachiko, Tsuchida Kazuki, Kamiya Atsunori, Furuya Shuichi

    CELLS   Vol. 9 ( 10 )   2020.10

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Cells  

    Boron neutron capture therapy (BNCT) requires pharmaceutical innovations and molecular-based evidence of effectiveness to become a standard cancer therapeutic in the future. Recently, in Japan, 4-borono-L-phenylalanine (BPA) was approved as a boron agent for BNCT against head and neck (H&N) cancers. H&N cancer appears to be a suitable target for BPA-BNCT, because the expression levels of L-type amino acid transporter 1 (LAT1), one of the amino acid transporters responsible for BPA uptake, are elevated in most cases of H&N cancer. However, in other types of cancer including malignant brain tumors, LAT1 is not always highly expressed. To expand the possibility of BNCT for these cases, we previously developed poly-arginine peptide (polyR)-conjugated mercaptoundecahydrododecaborate (BSH). PolyR confers the cell membrane permeability and tumor selectivity of BSH. However, the molecular determinants for the properties are not fully understood. In this present study, we have identified the cluster of differentiation 44 (CD44) protein and translational machinery proteins as a major cell surface target and intracellular targets of BSH-polyR, respectively. CD44, also known as a stem cell-associated maker in various types of cancer, is required for the cellular uptake of polyR-conjugated molecules. We showed that BSH-polyR was predominantly delivered to a CD44High cell population of cancer cells. Once delivered, BSH-polyR interacted with the translational machinery components, including the initiation factors, termination factors, and poly(A)-biding protein (PABP). As a proof of principle, we performed BSH-polyR-based BNCT against glioma stem-like cells and revealed that BSH-polyR successfully induced BNCT-dependent cell death specifically in CD44High cells. Bioinformatics analysis indicated that BSH-polyR would be suitable for certain types of malignant tumors. Our results shed light on the biochemical properties of BSH-polyR, which may further contribute to the therapeutic optimization of BSH-BNCT in the future.

    DOI: 10.3390/cells9102149

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    PubMed

  10. Observation of neutron emission anisotropy by neutron activation measurement in beam-injected LHD deuterium plasmas

    Sugiyama S., Nishitani T., Matsuura H., Isobe M., Ogawa K., Tanaka T., Yoshihashi S., Uritani A., Osakabe M.

    NUCLEAR FUSION   Vol. 60 ( 7 )   2020.7

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1741-4326/ab90c9

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  11. A comparison between simulation and experimental results for depth profile of Li-6 reaction rate in a water phantom of BNCT using a small Li-6-based scintillator neutron detector with an optical fiber

    Ishikawa Akihisa, Yamazaki Atsushi, Watanabe Kenichi, Yoshihashi Sachiko, Uritani Akira, Tsurita Yukio, Tsuchida Kazuki, Kiyanagi Yoshiaki

    RADIATION MEASUREMENTS   Vol. 133   2020.4

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Radiation Measurements  

    BNCT is a radiation therapy using neutrons. For dosimetry in BNCT, it is important to evaluate the thermal neutron distribution in a water phantom irradiated with neutrons used in the therapy. We proposed application of a small 6Li-based scintillator neutron detector with an optical fiber into a comparison study between simulation and experimental results in BNCT. In this paper, we compared simulation and experimental results for depth profile of 6Li(n,α) reaction rate in a water phantom of BNCT using a developed small 6Li-based scintillator neutron detector. The experimental results well agreed with the simulation ones. However, we found that the self-shielding effect in the detector will be significant even for a small LiF/Eu:CaF2 eutectics scintillator having the mass of 100 μg. We concluded that we have to consider the self-shielding effect in the small 6Li-based scintillator neutron detector when comparing simulation and experimental results of the 6Li(n,α) reaction rate in a water phantom.

    DOI: 10.1016/j.radmeas.2020.106270

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  12. Basic study on a LiF-Eu:CaF<inf>2</inf> mixed powder neutron scintillator

    Watanabe K.

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   Vol. 954   2020.2

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.nima.2018.09.079

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  13. Sensitivity and linearity of optical fiber-based neutron detectors using small<sup>6</sup>Li-based scintillators

    Ishikawa A.

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   Vol. 954   2020.2

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.nima.2018.11.120

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  14. Numerical Study of Turbulent Heat transfer enhancement in square-duct flow through of inline V-shaped discrete ribs

    Yu Stu. S., Tsuneyoshi T., Hamaji Y., Yoshihashi S., Ito T., Tsuji Y.

    The Proceedings of Conference of Tokai Branch   Vol. 2020.69 ( 0 ) page: 520   2020

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society of Mechanical Engineers  

    DOI: 10.1299/jsmetokai.2020.69.520

    CiNii Research

  15. Design of Neutron Spectrum-Shaping Assembly Around the Pneumatic Tube-End in the LHD Torus Hall for the Medical Research Application

    KOBAYASHI Makoto I., OGAWA Kunihiro, ISOBE Mitsutaka, NISHITANI Takeo, NISHIMURA Teruki, MUKAI Keisuke, YOSHIHASHI Sachiko, OSAKABE Masaki

    Plasma and Fusion Research   Vol. 15 ( 0 ) page: 2405043 - 2405043   2020

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society of Plasma Science and Nuclear Fusion Research  

    <p>The designs of neutron spectrum-shaping assembly (NSSA) composed with various shielding materials with natural isotopic abundance were evaluated to construct the neutron field dominated with thermal neutron or epi-thermal neutron for the application of neutron filed in the torus hall of LHD toward the BNCT research. According to the neutron transport calculation by MCNP6, the fast neutron moderation efficiency was higher in polyethylene (PE) compared to lithium fluoride (LiF) and magnesium fluoride (MF), although LiF showed relatively large epi-thermal and thermal neutron absorption. This comparison showed that the thermal neutron field can be effectively achieved with using PE. For constructing the NSSA which can provide the neutron field dominated with epi-thermal neutron, several NSSA designs were evaluated with respect to fast neutron flux, epi-thermal neutron flux, and gamma-ray dose. The combination of MF, lead (Pb) and cadmium (Cd) can provide the good epi-thermal neutron field with the mitigations of fast neutron flux and gamma-ray dose, which is also suitable for BNCT research in the torus hall of LHD.</p>

    DOI: 10.1585/pfr.15.2405043

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  16. Development of Optical-fiber-based Neutron Detector Using Li glass Scintillator for an Intense Neutron Field

    Ishikawa Akihisa, Yamazaki Atsushi, Watanabe Kenichi, Yoshihashi Sachiko, Uritani Akira, Sakurai Yoshinori, Tanaka Hiroki, Ogawara Ryo, Suda Mitsuru, Hamano Tsuyoshi

    SENSORS AND MATERIALS   Vol. 32 ( 4 ) page: 1489 - 1495   2020

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Sensors and Materials  

    The development of a neutron detector for real-time measurements in an intense neutron field is desired. We are developing a quartz optical-fiber-based neutron detector as a real-time neutron monitor. Thus far, Eu:LiCaAlF6 crystals and LiF/Eu:CaF2 eutectics have been used as the scintillators of the quartz optical-fiber-based neutron detectors. These scintillators have high light yields, but relatively long decay time constants, which are the limiting factors for the dynamic range of optical-fiber-based neutron detectors. In this work, we applied a small Li glass scintillator to a quartz optical-fiber-based neutron detector using an optical fiber with high numerical aperture and a UV-curable resin with high transmittance. The fabricated detector showed a clear peak corresponding to neutron events in the pulse height distribution. The radiation resistance was evaluated and no deterioration was observed up to 2 × 1012 n/cm2. The detector output linearity was confirmed up to 450 kcps, which was about ten times larger than that of the detector using the conventional Eu:LiCaAlF6 or LiF/Eu:CaF2 scintillator.

    DOI: 10.18494/SAM.2020.2748

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  17. Neutron flux distributions in the Large Helical Device torus hall evaluated by an imaging plate technique in the first campaign of the deuterium plasma experiment

    Kobayashi Makoto, Tanaka Tomoyo, Nishitani Takeo, Ogawa Kunihiro, Isobe Mitsutaka, Motojima Gen, Kato Akemi, Yoshihashi Sachiko, Osakabe Masaki

    NUCLEAR FUSION   Vol. 59 ( 12 )   2019.12

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1741-4326/ab3d14

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  18. Thermal neutron flux evaluation by a single crystal CVD diamond detector in LHD deuterium experiment

    Kobayashi M., Ogawa K., Isobe M., Nishitani T., Kamio S., Fujiwara Y., Tsubouchi T., Yoshihashi S., Uritani A., Sakama M., Osakabe M.

    JOURNAL OF INSTRUMENTATION   Vol. 14 ( 9 )   2019.9

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1748-0221/14/09/C09039

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  19. Measurement of neutron spectrum using activation method in deuterium plasma experiment at LHD

    Tanaka Tomoyo, Yoshihashi Sachiko, Kobayashi Makoto, Uritani Akira, Watanabe Kenichi, Yamazaki Atsushi, Nishitani Takeo, Ogawa Kunihiro, Isobe Mitsutaka

    FUSION ENGINEERING AND DESIGN   Vol. 146   page: 496 - 499   2019.9

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.fusengdes.2019.01.005

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  20. Development of thermal neutron moderator for testing boron agents for Boron Neutron Capture Therapy (BNCT)

    Ichikawa G., Tsuchida K., Kiyanagi Y., Ishikawa A., Hirata Y., Yoshihashi S., Watanabe K., Uritani A., Hamano T., Ogawara R., Suda M., Igawa K.

    JOURNAL OF INSTRUMENTATION   Vol. 14   2019.6

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1748-0221/14/06/T06010

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  21. Response evaluation of Onion-like single Bonner sphere neutron spectrometer using TRUST Eu:LiCAF scintillator

    Watanabe Kenichi, Mizukoshi Tomoaki, Yamazaki Atsushi, Yoshihashi Sachiko, Uritani Akira, Iguchi Tetsuo, Ogata Tomohiro, Muramatsu Takashi, Matsumoto Tetsuro, Masuda Akihiko

    Progress in Nuclear Science and Technology   Vol. 6 ( 0 ) page: 122 - 125   2019.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Atomic Energy Society of Japan  

    We have developed the single sphere neutron spectrometer with five sensitive layers using the TRUST Eu:LiCAF scintillator and the WLSF readout. We evaluated the energy dependence of the detector response at thermal neutron and 24 keV, 144 keV, 565 keV, 5MeV and 14.8 MeV mono-energetic neutron irradiation fields. The experimentally determined neutron sensitivities are consistent with the Monte Carlo calculations. The detector responses for a bare and a heavy-water moderated 252Cf sources also show good agreement with the expected ones using the Monte Carlo calculations.

    DOI: 10.15669/pnst.6.122

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  22. Basic evaluation of the Eu:BaFBr and Ce:CaF2 hybrid type optical fiber based dosimeter system for correction of quenching effect under carbon ion irradiation

    Hirata Yuho, Watanabe Kenichi, Yamazaki Atsushi, Yoshihashi Sachiko, Uritani Akira, Koba Yusuke, Matsufuji Naruhiro, Yanagida Takayuki, Fukuda Kentaro

    Progress in Nuclear Science and Technology   Vol. 6 ( 0 ) page: 238 - 242   2019.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Atomic Energy Society of Japan  

    We fabricated the hybrid type optical fiber based dosimeter system using Eu:BaFBr and Ce:CaF2 optically stimulated luminescence (OSL) materials in order to correct the quenching effect under high LET particle irradiation. The fabricated dosimeter probe can obtain signals from both OSL materials through one optical fiber. We investigated the probe response by irradiating it with mono-energetic carbon ions and broad-spectrum ones making the spread-out Bragg peak (SOBP). We demonstrated that the SOBP shape can be improved by correction of the quenching effect using the relationship between the luminescence efficiency and the signal intensity ratio of both OSL materials.

    DOI: 10.15669/pnst.6.238

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  23. Evaluation of imaging plate measurement for activated indium as fast-neutron detector in large radiation field

    Kobayashi Makoto, Nishitani Takeo, Kato Akemi, Saze Takuya, Tanaka Tomoyo, Yoshihashi Sachiko, Ogawa Kunihiro, Isobe Mitsutaka

    Progress in Nuclear Science and Technology   Vol. 6 ( 0 ) page: 58 - 62   2019.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Atomic Energy Society of Japan  

    The application of imaging plate (IP) method using indium foils to measure the distribution of fast neutron in large area was evaluated in this work. The radioactive nuclides of indium were individually quantified by high-purity germanium detector (HPGe) and chronological IP measurements. The detection efficiencies of each radioactive nuclide for various thicknesses of foil mylar polyester film were summarized. The scope of application for proposed method were clearly dependent on the flux ratio of fast and thermal neutron, limiting the applicable region only being close to the neutron source.

    DOI: 10.15669/pnst.6.58

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  24. Research of Heat Transfer Enhancement in Turbulence Ribbed-duct Flow via Numerical simulation

    Yu Shichao, Tsuneyoshi Tatsuya, Hamaji Yukinori, Yoshihashi Sachiko, Ito Takahiro, Tsuji Yoshiyuki

    The Proceedings of Conference of Tokai Branch   Vol. 2019.68 ( 0 ) page: 416   2019

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society of Mechanical Engineers  

    DOI: 10.1299/jsmetokai.2019.68.416

    CiNii Research

  25. Measurement of Thermal and Epithermal Neutron Flux Distribution in the Torus Hall of LHD using Activation Method in the First Deuterium Experiment Campaign

    TANAKA Tomoyo, KOBAYASHI Makoto, YOSHIHASHI Sachiko, URITANI Akira, WATANABE Kenichi, YAMAZAKI Atsushi, NISHITANI Takeo, OGAWA Kunihiro, ISOBE Mitsutaka

    Plasma and Fusion Research   Vol. 14 ( 0 ) page: 3405162 - 3405162   2019

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society of Plasma Science and Nuclear Fusion Research  

    <p>In the Large Helical Device (LHD) of the National Institute for Fusion Science, a deuterium plasma experiment was performed in March 2017. Neutrons with an energy of 2.45 MeV are generated by d (d, n) <sup>3</sup>He reactions. The evaluation of this neutron flux in the torus hall, as well as within the LHD vessel, is very important for the decommissioning of the LHD in the future and the radiation shielding for workers and components around the LHD. In this study, we evaluate the spatial distribution of thermal and epithermal neutron flux on the floor level of the LHD torus hall by measuring the neutron activation of gold foils. The flux information obtained in the experiment can be used for the evaluation of radio-activation and the shielding design.</p>

    DOI: 10.1585/pfr.14.3405162

    Web of Science

    Scopus

    CiNii Research

  26. Numerical heat transfer study of turbulent square-duct flow through inline V-shaped discrete ribs

    Yu Stu. Shichao, Tsuneyoshi Tatsuya, Yoshihashi Sachiko, Hamaji Yukinori, Ito Takahiro, Tsuji Yoshiyuki

    The Proceedings of the Fluids engineering conference   Vol. 2019 ( 0 ) page: OS8-07 - 7   2019

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society of Mechanical Engineers  

    <p>A numerical study has been conducted to examine turbulent flow and heat transfer characteristics in a three-dimensional square-duct with V-shaped ribs. The computations are based on RANS and LES models. Water is the working fluid with the flow rate of which Reynolds numbers equals to 18500. The computation reveals that two symmetrical fully developed helical flow and developed heat transfer profile are generated. Effects of different rib shape on thermal characteristics for a ribbed duct flow are investigated. The change of the shape leads to increase in heat transfer and pressure loss. The velocity profile in the vicinity of ribs and streamline has been investigated, indicates that the different flow structures generated by the rib shape leads to superior heat transfer performance. Vortices are visualized, which indicates the connection between the heat transfer and flow structure</p>

    DOI: 10.1299/jsmefed.2019.os8-07

    CiNii Research

  27. First measurements of thermal neutron distribution in the LHD torus hall generated by deuterium experiments

    Kobayashi Makoto, Tanaka Tomoyo, Nishitani Takeo, Ogawa Kunihiro, Isobe Mitsutaka, Kato Akemi, Saze Takuya, Yoshihashi Sachiko, Osakabe Masaki

    FUSION ENGINEERING AND DESIGN   Vol. 137   page: 191 - 195   2018.12

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.fusengdes.2018.09.013

    Web of Science

    Scopus

  28. Calibration experiment and the neutronics analyses on the LHD neutron flux monitors for the deuterium plasma experiment

    Nishitani Takeo, Ogawa Kunihiro, Isobe Mitsutaka, Kawase Hiroki, Pu Neng, Kashchuk Yuri, Krasilnikov Vitaly, Jo Jungmin, Cheon Munseong, Tanaka Tomoyo, Yoshihashi Sachiko, Li Siyuan, Osakabe Masaki

    FUSION ENGINEERING AND DESIGN   Vol. 136   page: 210 - 214   2018.11

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.fusengdes.2018.01.053

    Web of Science

    Scopus

  29. Neutron Diagnostics in the Large Helical Device

    Isobe Mitsutaka, Ogawa Kunihiro, Nishitani Takeo, Miyake Hitoshi, Kobuchi Takashi, Pu Neng, Kawase Hoiroki, Takada Eiji, Tanaka Tomoyo, Li Siyuan, Yoshihashi Sachiko, Uritani Akira, Jo Jungmin, Murakami Sadayoshi, Osakabe Masaki

    IEEE TRANSACTIONS ON PLASMA SCIENCE   Vol. 46 ( 6 ) page: 2050 - 2058   2018.6

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/TPS.2018.2836987

    Web of Science

    Scopus

  30. What’s diversity for?

    Yoshida Hiroko, Yoshihashi Sachiko

    Journal of the Atomic Energy Society of Japan   Vol. 60 ( 5 ) page: 303 - 306   2018

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Atomic Energy Society of Japan  

    DOI: 10.3327/jaesjb.60.5_303

    CiNii Research

  31. In situ calibration of neutron activation system on the large helical device

    Pu N., Nishitani T., Isobe M., Ogawa K., Kawase H., Tanaka T., Li S. Y., Yoshihashi S., Uritani A.

    REVIEW OF SCIENTIFIC INSTRUMENTS   Vol. 88 ( 11 ) page: 113302   2017.11

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1063/1.5009475

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    Scopus

    PubMed

  32. Measurement of transient flow characteristics of target flow in water experiment for IFMIF

    Matsuda Shotaro, Kanemura Takuji, Kondo Hiroo, Kaji Sayaka, Okita Takafumi, Yoshihashi Sachiko, Hoashi Eiji, Horiike Hiroshi

    FUSION ENGINEERING AND DESIGN   Vol. 124   page: 1096 - 1100   2017.11

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.fusengdes.2017.03.111

    Web of Science

    Scopus

  33. Particle Dependence of Quenching Effect in an Optical-Fiber-Type Optically Stimulated Luminescence Dosimeter

    Hirata Yuho, Watanabe Kenichi, Yoshihashi Sachiko, Uritani Akira, Koba Yusuke, Naruhiro Matsufuj I, Yanagida Takayuki, Toshito Toshiyuki, Fukuda Kentaro

    SENSORS AND MATERIALS   Vol. 29 ( 10 ) page: 1455 - 1464   2017

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.18494/SAM.2017.1626

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    Scopus

  34. The design of the beam line of the Nagoya University accelerator-driven neutron source

    Ito I., Furusawa D., Hirota K., Ichikawa G., Iwashita Y., Kitaguchi M., Kiyanagi Y., Menjo Y., Miwata Y., Shimizu H.M., Tsuchida K., Tsuchikawa Y., Tsurita Y., Uritani A., Watanabe K., Yamagata Y., Yamazaki A., Yoshihashi S.

    Proceedings of Science   Vol. 2017-January   2017

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    The Nagoya University Accelerator driven Neutron Source (NUANS) are now constructing at main campus of Nagoya University. The electrostatic accelerator is used with the maximum proton energy and power of 2.8MeV, 15mA(42kW) respectively. Two neutron beam lines are planned at NUANS. The first beam line is dedicated to BNCT. The second beam line is designed for research and development of neutron devices and neutron imaging. The neutrons used for the 2nd beam line are generated by using the (p, n) reaction of beryllium. We designed a compact target station for the 2nd beam line with the dimension of 90cm×90cm×95cm by using radiation shielding simulation. We considered neutron beam extraction with the cross section of 10cm×10cm for radiography at the 2nd beam line. The neutron flux is expected to be about 104n cm-2s-1 with the energy less than 0.1 eV at the position of 2m from the neutron source. We also calculated the proton beam transport from the exit of the accelerator to the neutron production target of the 2nd beam line.

    Scopus

  35. Engineering validation for lithium target facility of the IFMIF under IFMIF/EVEDA project

    Wakai E., Kanemura T., Kondo H., Hirakawa Y., Ito Y., Serizawa H., Kawahito Y., Higashi T., Suzuki A., Fukada S., Furuya K., Esaki K., Yagi J., Tsuji Y., Ito T., Niitsuma S., Yoshihashi-Suzuki S., Watanabe K., Furukawa T., Groeschel F., Micciche G., Manorri S., Favuzza P., Nitti F. S., Heidinger R., Terai T., Horiike H., Sugimoto M., Ohira S., Knaster J.

    NUCLEAR MATERIALS AND ENERGY   Vol. 9   page: 278 - 285   2016.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.nme.2016.05.012

    Web of Science

  36. Free-Surface Characteristics of a Liquid Li Wall Jet

    Kanemura Takuji, Kondo Hiroo, Sugiura Hirokazu, Yoshihashi Sachiko, Hoashi Eiji, Muroga Takeo, Furukawa Tomohiro, Hirakawa Yasushi, Wakai Eiichi, Horiike Hiroshi

    PLASMA AND FUSION RESEARCH   Vol. 11   2016.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1585/pfr.11.1405117

    Web of Science

  37. Laser reflection measurement on liquid lithium slow surface flow Reviewed

    Sachiko Yoshihashi, Tsubasa Masaoka, Eiji Hoashi, Takafumi Okita, Hiroo Kondo, Takuji Kanemura, Nobuo Yamaoka, Hiroshi Horiike

    Fusion Engineering and Design   Vol. 102   page: 108   2016.1

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  38. Measurement of Li target thickness in the EVEDA Li Test Loop Reviewed

    Takuji Kanemura, Hiroo Kondo, Tomohiro Furukawa, Yasushi, Hirakawa, Eiji Hoashi, Sachiko Yoshihashi, Hiroshi Horiike, Eiichi Wakai

    Fusion Engineering and Design   Vol. 98-99   page: 2638   2015.10

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    Language:English   Publishing type:Research paper (scientific journal)  

  39. Certification of contact probe measurement of surface wave of Li jet for IFMIF Reviewed

    Takafumi Okita, Eiji Hoashi, Sachiko Yoshihashi, Hiroo Kondo, Takuji Kanemura, Nobuo Yamaoka, Hiroshi Horiike

    Fusion Engineering and Design   Vol. 98-99   page: 2050   2015.10

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  40. Optical measurement of the amount of evaporation of liquid metal lithium Reviewed

    Sachiko Yoshihashi, Noriyuki Teranishi, Kohei Yamamoto, Daisuke Izawa, Takafumi Okita, Eiji Hoashi, Hiroshi Horiike

    Journal of Radioanalytical and Nuclear Chemistry   Vol. 305 ( 3 ) page: 953   2015.7

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    Language:English   Publishing type:Research paper (scientific journal)  

  41. Evaluation of applicability of laser-based distance meter to measure Li-jet Thickness for IFMIF project, Fusion Engineering and Design Reviewed

    Takuji Kanemura, Hiroo Kondo, Eiji Hoashi, Sachiko Yoshihashi-Suzuki, Nobuo Yamaoka, Hiroshi Horiike, Tomohiro Furukawa, Yasushi Hirakawam Eiich Wakai

    Fusion Engineering and Design   Vol. 89   page: 1647   2014.10

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    Language:English   Publishing type:Research paper (scientific journal)  

  42. Metallurgical analysis of lithium test assembly operated for 1200 h Reviewed

    Tomohiro Furukawa, Hiroo Kondo, Takuji Kanemura, Yasushi Hirakawa, Nobuo Yamaoka, Eiji Hoashi, Sachiko Suzuki-Yoshihashi

    Fusion Engineering and Design   Vol. 89   page: 1674   2014.10

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    Language:English   Publishing type:Research paper (scientific journal)  

  43. Numerical study on free surface flow on liquid metal lithium for IFMIF Reviewed

    Eiji Hoashi, Sachiko Yoshihashi-Suzuki, Hiroshi namba, Takuji Kanemura, Hiroo Kondo, Tomohiro Furukawa, Nobuo Yamaoka, Hiroshi Horiike

    Fusion Engineering and Design   Vol. 88   page: 2515   2013.10

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    Language:English   Publishing type:Research paper (scientific journal)  

  44. Fablrication and performance test of contact-type liquid level sensor for measuring thickness variation of liquid lithium jet in the IFMIF/EVEDA lithium test loop Reviewed

    Takuji Kanemura, Hiroo Kondo, Eiji Hoashi, Sachiko Yoshihashi-Suzuki, Nobuo Yamaoka, Hiroshi Horiike, Tomohiro Furukawa, Yasushi Hirakawa, Mizuho Ida, Izuru Matushita, Eiichi Wakai

    Fusion Engineering and Design   Vol. 88   page: 2547   2013.10

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    Language:English   Publishing type:Research paper (scientific journal)  

  45. Characteristics of Surface Oscillation on High Speed Liquid Li Jet Reviewed

    Sachiko Yoshihashi-Suzuki, Eiji Hoashi, Takuji Kanemura, Hiroo Kondo, Nobuo Yamaoka, Hiroshi Horiike

    Fusion Engineering and Design   Vol. 87   page: 1434   2012.10

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    Language:English   Publishing type:Research paper (scientific journal)  

  46. Engineering design of contact-type liquid level sensor for measureing thickness vatiation of liqud lithium jet in IFMIF/EVEDA lithium test loop Reviewed

    Takuji Kanemura, Hiroo Kondo, Sachiko Yoshihashi-Suzuki, Eiji Hoashi, Nobuo Yamaoka, Hiroshi Horiike, Tomohiro Furukawa, Mizuho Ida, Kazuyuki Nakamura, Izuru Matsushita, Eiichi Wakai

    Fusion science and technology   Vol. 62   page: 258   2012.7

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    Language:English   Publishing type:Research paper (scientific journal)  

  47. Overview: Free surface measurement with renewed nozzle of Osaka Li loop Reviewed

    Sachiko Yoshihashi-Suzuki, Hirokazu Sugiura, Eiji Hoashi, Hiroo Kondo, Takuji Kanemura, Nobuo, Yamaoka, Mizuho Ida, Hiroo Nakamura, Kazuyuki Nakamura, Izuru matsushita, Hiroshi Horiike

    Fusion Engineering and Design   Vol. 86   page: 2635   2011.10

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    Language:English   Publishing type:Research paper (scientific journal)  

▼display all

MISC 1

  1. Nagoya University Accelerator-based Neutron Source (NUANS)

    Sachiko Yoshihashi, NUANS group

    Association of Asia Pacific Physical Societies Bulletin   Vol. 31   2021.6

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    Authorship:Lead author   Language:English   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

Presentations 51

  1. hermal Neutron Measurement Capability of Single Crystal CVD Diamond Detector near the Reactor Core Region of UTR-KINKI

    M.I. Kobayashi, S. Yoshihashi, H. Yamanishi, S. Sangaroon, L. Ogawa, M. Isobe, A. Uritani, M. Osakabe

    30th International Toki Conference  2021.11.18 

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    Event date: 2021.11

    Language:English   Presentation type:Oral presentation (general)  

  2. Evaluation of induced radioactivity generated in the LHD deuterium plasma experiments International conference

    S.Yoshihashi, H. Yamada, M. Kobayashi, T. Nishitani, A. Yamazaki, M. Isobe, K. Ogawa, A. Uritani

    30th International Toki Conference  2021.11.18 

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    Event date: 2021.11

    Language:English   Presentation type:Oral presentation (general)  

  3. Evaluation of Neutron Production by the p-Li Reaction for BNCT using ACE-J40HE

    2021.9.10 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  4. Development of a pulse shape discrimination using single crystal CVD diamond detector for fast neutron measurement

    2021.9.9 

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    Event date: 2021.9

  5. Evaluation of beam scanning method for sealed Li target heat load reduction for BNCT

    2021.9.8 

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    Event date: 2021.9

  6. Evaluation of induced radioactivity generated in the LHD deuterium experiments

    2021.9.9 

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    Event date: 2021.9

  7. Research on beam transport model construction of dynamitron accelerator for BNCT

    2021.9.8 

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    Event date: 2021.9

    Language:Japanese  

  8. Liガラスシンチレータを用いた光ファイバ型中性子検出器のガンマ線感度評価

    石川諒尚、渡辺賢一、山崎淳、吉橋幸子、瓜谷章

    日本原子力学会2021春の年会  2021.3.18 

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    Event date: 2021.3

  9. BNCT用Li封入型ターゲット表面の熱解析

    冨田誠之介、吉橋幸子、本田祥梧、土田一輝、渡辺賢一、瓜谷章、山崎淳

    日本原子力学会2021春の年会  2020.3.18 

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    Event date: 2021.3

  10. 光ファイバ型線量計作製の自動化およびその性能評価

    光ファイバ型線量計作製の自動化およびその性能評価

    日本原子力学会2021春の年会  2021.3.18 

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    Event date: 2021.3

  11. Liガラスシンチレータを用いた光ファイバ型中性子検出器の熱中性子感度および出力線形性

    石川諒尚、渡辺賢一、山崎淳、吉橋幸子、瓜谷章

    第68回応用物理学会春季学術講演会  2021.3.16 

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    Event date: 2021.3

  12. 中性子ブラッグエッジ解析に対する機械学習の適用性検討

    西浦真介、瓜谷 章, 渡辺 賢一, 吉橋 幸子, 山﨑 淳

    第68回応用物理学会春季学術講演会  2021.3.17 

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    Event date: 2021.3

  13. BeOセラミックの成分分離したTLグローピーク発光量と線量の関係

    永坂光正、瓜谷章、渡辺賢一、吉橋幸子、山崎淳

    第68回応用物理学会春季学術講演会  2021.3.19 

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    Event date: 2021.3

  14. Neutron Source for BNCT at Nagoya University -High Current Operation- International conference

    S. Yoshihashi, K. Tsuchida, S. Honda, K. Watanabe, A. Yamazaki, A. Uritani, Y. Kiyanagi, Tsukasa Miyajima

    UCANS-web2020  2020.12.3 

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    Event date: 2020.11 - 2020.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Online  

  15. A comprehensive evaluation of the thermal neutron detection efficiency by single crystal CVD diamond detector with LiF thermal neutron converter International conference

    Makoto I. Kobayashi, Sachiko Yoshihashi, Kunihiro Ogawa, Mitsutaka Isobe, Siriyaporn Sangaroon, Shuji Kamio, Yutaka Fujiwara, Masaki Osakabe

    31st Symposium on Fusion Technology  2020.9 

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    Event date: 2020.9

    Language:English   Presentation type:Poster presentation  

    Venue:Online  

  16. 単結晶CVDダイヤモンド検出器の波形弁別によるトリチウム増殖反応定量計測手法の開発

    小林真、吉橋幸子、小川国大、磯部光孝、神尾修治、藤原大、瓜谷章、長壁正樹

    日本原子力学会2020秋の年会  2020.9.17 

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    Event date: 2020.9

  17. BeO OSLを用いたBNCT場でのガンマ線線量測定手順に関する詳細検討

    中村悟、瓜谷 章, 渡辺 賢一, 吉橋 幸子, 山﨑 淳

    日本原子力学会2020秋の年会  2020.9.16 

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    Event date: 2020.9

  18. 名古屋大学におけるBNCT用加速器型中性子源システム開発(2) Li封入型ターゲットの開発

    本田祥梧、吉橋幸子、土田一輝、鬼柳善明、釣田幸雄、渡辺賢一、山﨑淳、瓜谷章

    日本原子力学会2020秋の年会  2020.9.17 

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    Event date: 2020.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン  

  19. 名古屋大学におけるBNCT用加速器型中性子源システム開発(1)システム開発の進捗状況

    吉橋幸子、土田一輝、瓜谷章、本田祥梧、渡辺賢一、 山﨑淳、鬼柳善明、宮島司

    日本原子力学会2020秋の年会  2020.9.17 

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    Event date: 2020.9

  20. CVDダイヤモンド検出器を用いたホウ素中性子捕捉反応の直接計測法の開発

    吉橋幸子、小林真、小川国大、磯部光孝、長壁正樹、渡辺賢一、瓜谷章

    第81回応用物理学会秋季学術講演会  2020.9.9  応用物理学会

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    Event date: 2020.9

    Language:Japanese  

    Venue:オンライン  

  21. 熱解析を用いたBNCT用Li封入型ターゲットの除熱性能評価

    冨田誠之介、吉橋幸子、本田祥梧、土田一輝、渡辺賢一、瓜谷章、山崎淳

    第81回応用物理学会秋季学術講演会  2020.9.9 

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    Event date: 2020.9

  22. 中性子ブラッグエッジ解析におけるシングルフィッティング精度に関する研究

    西浦真介、瓜谷 章, 渡辺 賢一, 吉橋 幸子, 山﨑 淳

    第81回応用物理学会秋季学術講演会  2020.9.10 

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    Event date: 2020.9

  23. BeOセラミックの放射線誘起蛍光特性に関する研究

    永坂光正、瓜谷章、渡辺賢一、吉橋幸子、山崎淳

    第81回応用物理学会秋季学術講演会  2020.9.11 

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    Event date: 2020.9

  24. 光ファイバを用いた人体挿入可能な小型線量計の製作方法に関する検討

    金子和樹、瓜谷 章, 渡辺 賢一, 吉橋 幸子, 山﨑 淳

    第81回応用物理学会秋季学術講演会  2020.9.8 

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    Event date: 2020.9

  25. Liガラスシンチレータを用いた光ファイバ型中性子検出器のガンマ線に対する応答評価

    石川諒尚、渡辺賢一、山崎淳、吉橋幸子、瓜谷章

    第81回応用物理学会秋季学術講演会  2020.9.10 

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    Event date: 2020.9

    Language:Japanese  

  26. 名古屋大学におけるLiターゲットを用いた加速器型中性子減の開発現状 Invited

    吉橋幸子、土田一輝、瓜谷章、渡辺賢一、 山﨑淳、鬼柳善明

    第81回応用物理学会秋季学術講演会  2020.9.10 

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    Event date: 2020.9

    Language:Japanese  

    Venue:オンライン  

  27. Thermal neutron flux evaluation by a single crystal CVD diamond detector in LHD deuterium experiment

    Kobayashi M.

    Journal of Instrumentation 

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    Event date: 2019.9

    Language:English   Presentation type:Oral presentation (general)  

    DOI: 10.1088/1748-0221/14/09/C09039

    Scopus

  28. LHDにおける放射化法を用いた中性子スペクトル測定

    田中智代、瓜谷章、渡辺賢一、吉橋幸子、山崎淳、磯部光孝、小川国大、西谷健夫、小林真

    原子力学会 2018年春の年会 

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    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  29. TRUST Eu:LiCAFを用いた一次元位置敏感型中性子検出器の特性評価

    志水裕昭、木野幸一、佐藤節夫、渡辺賢一、瓜谷章、吉橋幸子、山崎淳

    原子力学会 2018年春の年会 

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    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  30. 単一減速材球型中性子スペクトロメータを用いたBNCT中性子場のスペクトル測定に関する検討

    李思遠、佐藤和也、吉橋幸子、山崎淳、渡辺賢一、瓜谷章

    第65回応用物理学会 春季学術講演会 

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    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  31. LiF/Eu:CaF2共晶体シンチレータと光ファイバーを組み合わせた中性子検出器の特性評価

    渡辺賢一、石川諒尚、山崎淳、吉橋幸子、瓜谷章、河口範明、柳田健之

    日本中性子科学会第17回年会 

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    Event date: 2017.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  32. Examination of heat removal method of high heat flux to target International conference

    D. Furuzawa, A. Uritani, K. Watanabe, S. Yoshihashi, A. Yamazaki, Y. Kiyanagi, K. Tsuchida, Y. Tsuji, T. Tsuneyoshi, Y. Hamaji, M. Tokitani, H. Tamura, A. Sagara

    9th Young Researcher's BNCT Meeting 

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    Event date: 2017.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  33. Development of beam shaping assembly for BNCT system in Nagoya University International conference

    K. Sato, A. Uritani, K. Watanabe, S. Yoshihashi, A. Yamazaki, Y. Kiyanagi, K. Tsuchida

    9th Young Researcher's BNCT Meeting 

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    Event date: 2017.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  34. Accelerator based BNCT system in Nagoya University -Development of an Sealed Li target-

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  35. 名古屋大学における加速器BNCTシステム-ノズル付きBSAの開発-

    佐藤和也、瓜谷章、渡辺賢一、吉橋幸子、山崎淳、鬼柳善明、土田一輝

    第14回日本中性子捕捉療法学会 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  36. Neutron calibration experiment and the neutronics analysis for the deuterium plasma experiments on LHD International conference

    T. Nishitani, K. Ogawa, M. Isobe, H. Kawase, N. Pu, Y. Kashchuk, V. Krasilnikov, J Jo, M. Cheon, T. Tanaka, S. Yoshihashi, S. Li, M. Osakabe

    13th International Symposium on Fusion Nuclear Technology 

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    Event date: 2017.9

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  37. 光刺激蛍光体と光ファイバーを用いた小型線量計における消光現象の補正方法の検討

    平田悠歩、山崎淳、渡辺賢一、吉橋幸子、瓜谷章、古場裕介、松藤成弘、歳籐利行、柳田健之

    第78回応用物理学会秋季学術講演会 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  38. Optimization of imaging plate method for the measurement of activated indium as fast neutron detector in large radiation field International conference

    M.Kobayashi, T. Nishitani, T. Saze, T. Tanaka, S. Yoshihashi, K. Ogawa, M. Isobe

    9th International Symporium on Radiation Safety and Detection Technology 

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    Event date: 2017.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  39. Development of one-dimensional position-sensitive neutron detector using TRUST Eu:LiCAF scintillator International conference

    H. Shimizu, K. Kino, S Sato, K. Watanabe, A. Uritani, S. Yoshihashi, A. Yamazaki

    International Conference on Neutron Oprics (NOP2017) 

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    Event date: 2017.7

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  40. Improve design of the exit of a beam shaping assembly for an accelerator-driven BNCT system in Nagoya University International conference

    K. Sato, A. Uritani, K. Watanabe, S. Yoshihashi, A. Yamazaki, Y. Kiyanagi, K. Tsuchida

    International Conference on Neutron Oprics (NOP2017) 

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    Event date: 2017.7

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  41. Neutron Diagnostics in the Large Helical Device International conference

    M. Isobe, K. Ogawa, T. Nishitani, H. Miyake, T. Kobuchi, N. Pu, H. Kawase, E. Takada, T. Tanaka, S.Y. Li, S. Yoshihashi, A. Uritani, S. Murakami, M. Osakabe, LHD Experiment group

    27th IEEE Symposium on Fusion Engineering 

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    Event date: 2017.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  42. Nagoya University BNCT system using DC accelerator and sealed lithium target International conference

    Sachiko Yoshihashi, A. Uritani, K. Watanabe, D. Furuzawa, K. Sato, K. Tsuchida, Y. Kiyanagi. G. Ichikawa, Y. Tsuji, T. Tsuneyoshi, Y. Hamaji

    Laser and Accelerator Neutron Sources and Applications 2017 

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    Event date: 2017.4

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  43. The design of the beam line of the Nagoya University accelerator-driven neutron source

    Ito I.

    Proceedings of Science 

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    Event date: 2017

    Language:English   Presentation type:Oral presentation (general)  

    Scopus

  44. Measurement of free-surface lithium flow using laser reflection method International conference

    Sachiko Yoshihashi, Kei Higashi, Eiji Hoashi, Takafumi Okita, Hiroo Kondo, Takuji Kanemura, Nobuo Yamaoka, Hiroshi Horiike

    29th symposium on fusion technology 

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    Event date: 2016.9

    Language:English   Presentation type:Poster presentation  

    Country:Czech Republic  

  45. Laser reflection measurement on liquid lithium slow surface flow International conference

    Sachiko Yoshihashi, Tsubasa Masaoka, Eiji Hoashi, Takafumi Okita, Hiroo Kondo, Takuji Kanemura, Nobuo Yamaoka, Hiroshi Horiike

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    Event date: 2014.9 - 2014.10

    Language:English   Presentation type:Poster presentation  

    Country:Spain  

  46. Optical measurement of the amount of evaporation of liquid metal lithium International conference

    Sachiko Yoshihashi, Noriyuki Teranishi, Kohei Yamamoto, Daisuke Izawa, Takafumi Okita, Eiji Hoashi, Hiroshi Horiike

    International Nuclear Target Development Society 2014 

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    Event date: 2014.8 - 2014.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  47. Mock-up Experiment at Birmingham University for BNCT Project of Osaka University -Gamma-ray Dose Measurement with Glass Dosimeter- International conference

    Sachiko Yoshihashi, Makoto Sakai, Masanobu manabe, Naoki Zushi, Shingo Tamaki, Isao Murata, Eiji Hoashi, Itsuro Kato, Shuhei Kuri, Shuji Oshiro, masao Nagasaki, Hiroshi Horiike

    16th International Congress on Neutron Capture Therapy 

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    Event date: 2014.6

    Language:English   Presentation type:Poster presentation  

    Country:Finland  

  48. Basic Research for decontamination and dismantlement of nuclear power plant structures using nano-pulsed laser International conference

    Sachiko Yoshihashi-Suzuki, Tomoko Kumakura, Eiji Hoashi, Hiroshi Horiike

    International Workshop on Laser Application to Nuclear Decommissioning and Decontamination LANDD2013 

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    Event date: 2013.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  49. Cut processing using short pulsed lasers for decomissioning International conference

    Sachiko Yoshihashi-Suzuki, Naoyuki Miyata, Tomoko Kumakura, Eiji Hoashi Hiroshi Horiike

    International Conference on Laser Applications in Nuclear Engineering 

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    Event date: 2013.4

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  50. BeO OSL線量計のBNCT場適用に向けた検討と特性評価

    中村悟、瓜谷 章, 渡辺 賢一, 吉橋 幸子, 山﨑 淳

    日本放射線安全管理学会  2020.12.9 

  51. Evaluation of Gamma-ray Sensitivity of an Optical Fiber-based Neutron Detector Using a Li-glass Scintillator International conference

    Akihisa Ishikawa, Kenichi Watanabe, Atsushi Yamazaki, Sachiko Yoshihashi, Akira Uritani

    IEEE NSS-MIC 2020  2020.11.14 

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Research Project for Joint Research, Competitive Funding, etc. 3

  1. レーザー誘起ブレイクダウン分光法による小型中性子源用Liターゲットの表面状態観察

    2020.8 - 2021.3

    立松財団  特別研究助成

    吉橋幸子

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\3000000

  2. LHD重水素実験のためのMeVイオン計測システムの開発

    2016.6

    国内共同研究 

  3. 加速器BNCT用ターゲットの除熱性能評価試験

    2016.6

    国内共同研究 

KAKENHI (Grants-in-Aid for Scientific Research) 4

  1. 永久磁石を用いた革新的電磁ポンプの開発に関する研究

    2016.4 - 2018.3

    科学研究費補助金 

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    Authorship:Principal investigator 

  2. BNCTのためのホウ素濃度比(T/N:腫瘍・正常細胞比)リアルタイム測定手法開発

    2015.4 - 2018.3

    科学研究費補助金  基盤研究(B)

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    Authorship:Coinvestigator(s) 

  3. Development of innovative electromagnetic pump using permanent magnet

    Grant number:16K14541  2016.4 - 2019.3

    Yoshihashi Sachiko

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    Authorship:Principal investigator 

    Grant amount:\3510000 ( Direct Cost: \2700000 、 Indirect Cost:\810000 )

    This challenge is a basic study of the development of a small electromagnetic pump for flowing liquid metal.Liquid metal flow is used for fusion reactors and fast reactors, and in recent years as targets for small neutron sources.However, typical electromagnetic pumps used for liquid metal flow are large and complex.In this study, we formulated and built a pump that combines two small permanent magnet arrays.First, the magnetic field distribution was calculated by numerical analysis, the magnetic field of the pump was measured with a gauss meter, and the consistency between the calculation result and the experimental value was confirmed.Next, the thrust was measured using different types of metal plates, and the relationship between the electrical conductivity and the thrust was evaluated.As the results, we succeeded in demonstrating the principle of this pump.

  4. Development of real-time T/N ratio measuring technique for BNCT

    Grant number:15H04242  2015.4 - 2019.3

    Murata Isao

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    Authorship:Coinvestigator(s) 

    Boron Neutron Capture Therapy (BNCT) is known as a promising radiation cancer therapy. For the realization, a special SPECT system is indispensable to know the BNCT effect by monitoring T/N Ratio (concentration ratio of 10B in tumor to normal cell) in realtime. In this study, basic researches for the T/N-SPECT were carried out. First, we investigated an elemental device to detect 478 keV γ-rays emitted from BNC reaction, and decided to use GAGG scintillator as the key detection element for T/N-SPECT. Then, we aimed to carry out the performance test by using an epi-thermal neutron source produced with a DT neutron source. However, due to the Northern Osaka Earthquake the accelerator was seriously broken so that it became not possible to carry out experiments. Instead we utilized an AmBe source to prepare an epi-thermal neutron source, though it was a little weak. We confirmed only the basic validity. We think, we should do more precise experiments using the DT neutron source in future.

 

Teaching Experience (On-campus) 22

  1. Numerical Analysis

    2020

  2. Engineering Mathematics II with Exercises

    2020

  3. Mathematics II and Tutorial

    2020

  4. Computer Programing and Numerical Calculation B

    2020

  5. 総合エネルギー工学セミナー1B

    2020

  6. 総合エネルギー工学セミナー1A

    2020

  7. エネルギー理工学特別講義第2

    2020

  8. エネルギー理工学セミナーB

    2020

  9. エネルギー理工学輪講A

    2020

  10. 卒業研究B

    2020

  11. 総合エネルギー工学セミナー1C

    2020

  12. 総合エネルギー工学セミナー2E

    2020

  13. 総合エネルギー工学セミナー2D

    2020

  14. 総合エネルギー工学セミナー2C

    2020

  15. 総合エネルギー工学セミナー2B

    2020

  16. 総合エネルギー工学セミナー2A

    2020

  17. 総合エネルギー工学特別実験及び演習B

    2020

  18. 総合エネルギー工学特別実験及び演習A

    2020

  19. 中性子・原子核科学

    2020

  20. 総合エネルギー工学セミナー1D

    2020

  21. 中性子原子核科学特論

    2016

  22. 基礎セミナーB

    2016

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Teaching Experience (Off-campus) 4

  1. 放射線生物学

    2015.4 - 2016.3 Fukui University of Technology)

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    Level:Undergraduate (specialized) 

  2. 量子エネルギー基礎論

    2015.4 - 2015.3 Osaka University)

  3. 電磁気学

    2010.4 - 2015.3 Osaka University)

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    Level:Undergraduate (specialized) 

  4. 電力工学

    2010.4 - 2015.3 Osaka University)

 

Social Contribution 2

  1. 名大研究室の扉in河合塾

    Role(s):Lecturer

    2017.6

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    Audience: High school students

    Type:Lecture

  2. 夢ナビライブ2021

    Role(s):Lecturer