Papers - OKUMURA Akira
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Saito Yo, Gunji Shuichi, Nakamori Takeshi, Okumura Akira, Nakazawa Kazuhiro, Kurosawa Shunsuke, Watanabe Naoki, Karube Atsuhito
Meeting Abstracts of the Physical Society of Japan Vol. 72 ( 0 ) page： 414-414 - 414 2017
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CTA Report 124: A simulation study of CTA performance for measurement of electron/positron spectrum in TeV region(II)
Ohishi Michiko, Nishijima Kyoshi, Miura Chika, Yoshikoshi Takanori, Yoshida Tatsuo, Ri Ken, the CTA-Japan, Inada Tomohiro, Okumura Akira, Katagiri Hideaki, Kushida Junko, Gunji Shuichi, Saito Takayuki, Sakaki Naoto, Chikawa Michiyuki
Meeting Abstracts of the Physical Society of Japan Vol. 72 page： 356 - 356 2017
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Simulating the optical performance of a small-sized telescope with secondary optics for the Cherenkov Telescope Array Reviewed
Cameron Rulten, Andreas Zech, Akira Okumura, Philippe Laporte, Jürgen Schmoll
Astroparticle Physics Vol. 82 page： 36-48 2016.5
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ROBAST: Development of a ROOT-based ray-tracing library for cosmic-ray telescopes and its applications in the Cherenkov Telescope Array Reviewed
Akira Okumura, Koji Noda, Cameron Rulten
Astroparticle Physics 2015.12
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Prototyping of Hexagonal Light Concentrators for the Large-Sized Telescopes of the Cherenkov Telescope Array
Akira Okumura, Sakiya Ono, Syunya Tanaka, Masaaki Hayashidad, Hideaki Katagiri, Tatsuo Yoshida
Proceedings of the 34th International Cosmic Ray Conference (ICRC2015) page： 951 2015
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ROBAST: Development of a Non-sequential Ray-tracing Simulation Library and its Applications in the Cherenkov Telescope Array
A. Okumura, K. Noda, C. Rulten
Proceedings of the 34th International Cosmic Ray Conference (ICRC2015) page： 941 2015
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Inferred Cosmic‐Ray Spectrum from Fermi Large Area Telescope γ‐Ray Observations of Earth's Limb
M. Ackermann, M. Ajello, A. Albert, A. Allafort, L. Baldini, G. Barbiellini, D. Bastieri, K. Bechtol, R. Bellazzini, R. D. Blandford, E. D. Bloom, E. Bonamente, E. Bottacini, A. Bouvier, T. J. Brandt, M. Brigida, P. Bruel, R. Buehler, S. Buson, G. A. Caliandro, R. A. Cameron, P. A. Caraveo, C. Cecchi, E. Charles, R. C. G. Chaves, A. Chekhtman, J. Chiang, G. Chiaro, S. Ciprini, R. Claus, J. Cohen‐Tanugi, J. Conrad, S. Cutini, M. Dalton, F. D’Ammando, A. de Angelis, F. de Palma, C. D. Dermer, S. W. Digel, L. Di Venere, E. do Couto e Silva, P. S. Drell, A. Drlica‐ Wagner, C. Favuzzi, S. J. Fegan, E. C. Ferrara, W. B. Focke, A. Franckowiak, Y. Fukazawa, S. Funk, P. Fusco, F. Gargano, D. Gasparrini, S. Germani, N. Giglietto, F. Giordano, M. Giroletti, T. Glanzman, G. Godfrey, G. A. Gomez‐Vargas, I. A. Grenier, J. E. Grove, S. Guiriec, M. Gustafsson, D. Hadasch, Y. Hanabata, A. K. Harding, M. Hayashida, K. Hayashi, J. W. Hewitt, D. Horan, X. Hou, R. E. Hughes, Y. Inoue, M. S. Jackson, T. Jogler, G. Jóhannesson, A. S. Johnson, T. Kamae, T. Kawano, J. Knödlseder, M. Kuss, J. Lande, S. Larsson, L. Latronico, F. Longo, F. Loparco, M. N. Lovellette, P. Lubrano, M. Mayer, M. N. Mazziotta, J. E. McEnery, J. Mehault, P. F. Michelson, W. Mitthumsiri, T. Mizuno, A. A. Moiseev, C. Monte, M. E. Monzani, A. Morselli, I. V. Moskalenko,§ S. Murgia, R. Nemmen, E. Nuss, T. Ohsugi, A. Okumura, M. Orienti, E. Orlando, J. F. Ormes, D. Paneque, J. H. Panetta, J. S. Perkins, M. Pesce‐Rollins, F. Piron, G. Pivato, T. A. Porter, S. Rainò, R. Rando, M. Razzano, S. Razzaque, A. Reimer, O. Reimer, S. Ritz, M. Roth, M. Schaal, A. Schulz, C. Sgrò, E. J. Siskind, G. Spandre, P. Spinelli, A. W. Strong, H. Takahashi, Y. Takeuchi, J. G. Thayer, J. B. Thayer, D. J. Thompson, L. Tibaldo, M. Tinivella, D. F. Torres, G. Tosti, E. Troja, V. Tronconi, T. L. Usher, J. Vandenbroucke, V. Vasileiou, G. Vianello, V. Vitale, M. Werner, B. L. Winer, K. S. Wood, M. Wood, and Z. Yang
Vol. 112 page： 151103 2014
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Geometry dependence of the light collection efficiency of BGO crystal scintillators read out by avalanche photo diodes Reviewed
M. Sasano, et al.
Nuclear Instruments and Methods in Physics Research A Vol. 715 page： 105-111 2013.3
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Optimization of the collection efficiency of a hexagonal light collector using quadratic and cubic Bézier curves Reviewed
Akira Okumura
Astroparticle Physics Vol. 38 page： 18-24 2012.9
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Gamma-Ray Observations of the Orion Molecular Clouds with the Fermi Large Area Telescope Reviewed
M. Ackermann, M. Ajello, A. Allafort, E. Antolini, L. Baldini, J. Ballet, G. Barbiellini, D. Bastieri, K. Bechtol, R. Bellazzini, B. Berenji, R. D. Blandford, E. D. Bloom, E. Bonamente, A. W. Borgland, E. Bottacini, T. J. Brandt, J. Bregeon, M. Brigida, P. Bruel, R. Buehler, S. Buson, G. A. Caliandro, R. A. Cameron, P. A. Caraveo, C. Cecchi, A. Chekhtman, J. Chiang, S. Ciprini, R. Claus, J. Cohen-Tanugi, J. Conrad, F. D'Ammando, A. de Angelis, F. de Palma, C. D. Dermer, E. do Couto e Silva, P. S. Drell, A. Drlica-Wagner, T. Enoto, L. Falletti, C. Favuzzi, S. J. Fegan, E. C. Ferrara, W. B. Focke, Y. Fukazawa, Y. Fukui, P. Fusco, F. Gargano, D. Gasparrini, S. Germani, N. Giglietto, F. Giordano, M. Giroletti, T. Glanzman, G. Godfrey, S. Guiriec, D. Hadasch, Y. Hanabata, A. K. Harding, M. Hayashida, K. Hayashi, D. Horan, X. Hou, R. E. Hughes, M. S. Jackson, G. Jóhannesson, A. S. Johnson, T. Kamae, H. Katagiri, J. Kataoka, M. Kerr, J. Knödlseder, M. Kuss, J. Lande, S. Larsson, S.-H. Lee, F. Longo, F. Loparco, M. N. Lovellette, P. Lubrano, K. Makishima, M. N. Mazziotta, J. Mehault, W. Mitthumsiri, A. A. Moiseev, C. Monte, M. E. Monzani, A. Morselli, I. V. Moskalenko, S. Murgia, T. Nakamori, M. Naumann-Godo, S. Nishino, J. P. Norris, E. Nuss, M. Ohno, T. Ohsugi, A. Okumura, M. Orienti, E. Orlando, J. F. Ormes, M. Ozaki, D. Paneque, J. H. Panetta, D. Parent, V. Pelassa, M. Pesce-Rollins, M. Pierbattista, F. Piron, G. Pivato, T. A. Porter, S. Rainò, M. Razzano, A. Reimer, O. Reimer, M. Roth, H. F.-W. Sadrozinski, C. Sgrò, E. J. Siskind, G. Spandre, P. Spinelli, A. W. Strong, H. Takahashi, T. Takahashi, T. Tanaka, J. G. Thayer, J. B. Thayer, O. Tibolla, M. Tinivella, D. F. Torres, A. Tramacere, E. Troja, Y. Uchiyama, T. L. Usher, J. Vandenbroucke, V. Vasileiou, G. Vianello, V. Vitale, A. P. Waite, P. Wang, B. L. Winer, K. S. Wood, Z. Yang, S. Zimmer
The Astrophysical Journal Vol. 756 ( 1 ) page： 4 2012.9
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TARGET: A multi-channel digitizer chip for very-high-energy gamma-ray telescopes Reviewed
K. Bechtol, S. Funk, A. Okumura, L.L. Ruckman, A. Simons, H. Tajima, J. Vandenbroucke, G.S. Varner
Astroparticle Physics Vol. 36 ( 1 ) page： 156-165 2012.7
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Design concepts for the Cherenkov Telescope Array CTA: an advanced facility for ground-based high-energy gamma-ray astronomy Reviewed
Actis, M. et al.
Experimental Astronomy Vol. 32 ( 3 ) page： 193-316 2011.11
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Development of Non-sequential Ray-tracing Software for Cosmic-ray Telescopes
Akira Okumura, Masaaki Hayashida, Hideaki Katagiri, Takayuki Saito, Vladimir Vassiliev
Proceedings of the 32nd International Cosmic Ray Conference Vol. 9 page： 210-213 2011
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Development of an ASIC for Dual Mirror Telescopes of the Cherenkov Telescope Array
Justin Vandenbroucke, Keith Bechtol, Stefan Funk, Akira Okumura, Hiro Tajima, Gary Varner
Proceedings of the 32nd International Cosmic Ray Conference Vol. 9 page： 161-164 2011