New air fluorescence detectors employed in the Telescope Array experiment
Abstract
Since 2007, the Telescope Array (TA) experiment, based in Utah, USA, has been observing ultra high energy cosmic rays to understand their origins. The experiment involves a surface detector (SD) array and three fluorescence detector (FD) stations. FD stations, installed surrounding the SD array, measure the air fluorescence light emitted from extensive air showers (EASs) for precise determination of their energies and species. The detectors employed at one of the three FD stations were relocated from the High Resolution Fly's Eye experiment. At the other two stations, newly designed detectors were constructed for the TA experiment. An FD consists of a primary mirror and a camera equipped with photomultiplier tubes. To obtain the EAS parameters with high accuracies, understanding the FD optical characteristics is important. In this paper, we report the characteristics and installation of new FDs and the performances of the FD components. The results of the monitored mirror reflectance during the observation time are also described in this report.
Keywords
Cite
@article{arxiv.1201.0002,
title = {New air fluorescence detectors employed in the Telescope Array experiment},
author = {H. Tokuno and Y. Tameda and M. Takeda and K. Kadota and D. Ikeda and M. Chikawa and T. Fujii and M. Fukushima and K. Honda and N. Inoue and F. Kakimoto and S. Kawana and E. Kido and J. N. Matthews and T. Nonaka and S. Ogio and T. Okuda and S. Ozawa and H. Sagawa and N. Sakurai and T. Shibata and A. Taketa and S. B. Thomas and T. Tomida and Y. Tsunesada and S. Udo and T. Abu-zayyad and R. Aida and M. Allen and R. Anderson and R. Azuma and E. Barcikowski and J. W. Belz and D. R. Bergman and S. A. Blake and R. Cady and B. G. Cheon and J. Chiba and E. J. Cho and W. R. Cho and H. Fujii and T. Fukuda and D. Gorbunov and W. Hanlon and K. Hayashi and Y. Hayashi and N. Hayashida and K. Hibino and K. Hiyama and T. Iguchi and K. Ikuta and T. Ishii and R. Ishimori and D. Ivanov and S. Iwamoto and C. C. H. Jui and O. Kalashev and T. Kanbe and K. Kasahara and H. Kawai and S. Kawakami and H. B. Kim and H. K. Kim and J. H. Kim and J. H. Kim and K. Kitamoto and K. Kobayashi and Y. Kobayashi and Y. Kondo and K. Kuramoto and V. Kuzmin and Y. J. Kwon and S. I. Lim and S. Machida and K. Martens and J. Martineau and T. Matsuda and T. Matsuura and T. Matsuyama and I. Myers and M. Minamino and K. Miyata and H. Miyauchi and Y. Murano and T. Nakamura and S. W. Nam and M. Ohnishi and H. Ohoka and K. Oki and D. Oku and A. Oshima and I. H. Park and M. S. Pshirkov and D. Rodriguez and S. Y. Roh and G. Rubtsov and D. Ryu and A. L. Sampson and L. M. Scott and P. D. Shah and F. Shibata and H. Shimodaira and B. K. Shin and J. I. Shin and T. Shirahama and J. D. Smith and P. Sokolsky and T. J. Sonley and R. W. Springer and B. T. Stokes and S. R. Stratton and T. Stroman and S. Suzuki and Y. Takahashi and M. Takita and H. Tanaka and K. Tanaka and M. Tanaka and G. B. Thomson and P. Tinyakov and I. Tkachev and S. Troitsky and K. Tsutsumi and Y. Tsuyuguchi and Y. Uchihori and H. Ukai and G. Vasiloff and Y. Wada and T. Wong and M. Wood and Y. Yamakawa and H. Yamaoka and K. Yamazaki and J. Yang and S. Yoshida and H. Yoshii and R. Zollinger and Z. Zundel},
journal= {arXiv preprint arXiv:1201.0002},
year = {2015}
}
Comments
44 pages, 23 figures, submitted to NIM-A