Selected Refereed Papers(主要な査読論文)

  1. Yuki Nakamura, Akira Okumura, Hiroyasu Tajima, Nobuhito Yamane, and Anatolii Zenin (2019)
    “Characterization of SiPM Optical Crosstalk and its Dependence on the Protection-Window Thickness”
    In the Proceedings of the 5th International Workshop on New Photon-Detectors (PD18), arXiv:1909.07529
  2. Akira Okumura, et al. (2019)
    “Development of a UV-transparent Lens Array for Enlarging the Effective Area of Multichannel SiPMs”
    In the Proceedings of the 5th International Workshop on New Photon-Detectors (PD18), arXiv:1908.05510
  3. A. Asano, et al. (2018)
    “Evaluation of silicon photomultipliers for dual-mirror Small-Sized Telescopes of Cherenkov Telescope Array”
    Nucl. Instrum. Methods Phys. Res. A 912 177–181
  4. J. Zorn, et al. (2018)
    “Characterisation and testing of CHEC-M—A camera prototype for the small-sized telescopes of the Cherenkov telescope array”
    Nucl. Instrum. Methods Phys. Res. A 904 44–63, arXiv:1711.02367
  5. Akira Okumura, Dang Viet Tan, Sakiya Ono, Syunya Tanaka, et al. (2017)
    “Prototyping hexagonal light concentrators using high-reflectance specular films for the Large-Sized Telescopes of the Cherenkov Telescope Array”
    JINST 12 P12008, arXiv:1711.02367, ADS:2017JInst..12P2008O
  6. A. Albert, S. Funk, T. Kawashima, M. Murphy, A. Okumura, R. Quagliani, L. Sapozhnikov, H. Tajima, L. Tibaldo, J. Vandenbroucke, G. Varner, T. Wu (2017)
    “TARGET 5: a new multi-channel digitizer with triggering capabilities for gamma-ray atmospheric Cherenkov telescopes”
    Astroparticle Physics 92 49–61, arXiv:1607.02443, ADS:2017APh....92...49A
  7. Cameron Rulten, Andreas Zech, Akira Okumura, Philippe Laporte, and Jürgen Schmoll (2016)
    “Simulating the optical performance of a small-sized telescope with secondary optics for the Cherenkov Telescope Array”
    Astroparticle Physics 82 36–48, ADS:2016APh....82...36R
  8. Akira Okumura, Koji Noda, Cameron Rulten (2016)
    “ROBAST: Development of a ROOT-Based Ray-Tracing Library for Cosmic-Ray Telescopes and its Applications in the Cherenkov Telescope Array”
    Astroparticle Physics 76 38–47, arXiv:1512.04369, ADS:2016APh....76...38O
  9. M. Sasano, H. Nishioka, S. Okuyama, K. Nakazawa, K. Makishima, S. Yamada, T. Yuasa, A. Okumura, J. Kataoka, Y. Fukazawa, Y. Hanabata, K. Hayashi (2013)
    “Geometry dependence of the light collection efficiency of BGO crystal scintillators read out by avalanche photo diodes”
    Nuclear Instruments and Methods in Physics Research A 715 105–111, ADS:2013NIMPA.715..105S
  10. Akira Okumura (2012)
    “Optimization of the collection efficiency of a hexagonal light collector using quadratic and cubic Bézier curves”
    Astroparticle Physics 38 18–24, arXiv:1205.3968, ADS:2012APh....38...18O
  11. M. Ackermann, et al. (2012)
    “Gamma-ray observations of the Orion Molecular Clouds with the Fermi Large Area Telescope”
    Astrophysical Journal 756 4, arXiv:1207.0616, ADS:2012ApJ...756....4A
  12. K. Bechtol, S. Funk, A. Okumura, L.L. Ruckman, A. Simons, H. Tajima, J. Vandenbroucke, G.S. Varner (2012)
    “TARGET: A multi-channel digitizer chip for very-high-energy gamma-ray telescopes”
    Astroparticle Physics 36 156–165, arXiv:1105.1832, ADS:2012APh....36..156B

Please see my ADS library for the full publication list.

他の論文一覧は ADS ライブラリを参照してください。


Domestic Conferences(国内学会)


  • "Gamma-Ray Observations of the Orion Molecular Clouds using the Fermi Large Area Telescope", Ph.D. Thesis, The University of Tokyo, July 2009 PDF
  • "TeV-γ線観測を用いた Ashra 光電撮像系の開発的研究", Master Thesis, The University of Tokyo, March 2005