Jul 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....2.1061a&link_type=abstract
Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I
Physics
1
Scientific paper
We propose a new air fluorescence and Cerenkov detector ASHRA. The ASHRA phase-1 detector consists of 1+1/3 observational stations installed at the distance of 30-40 km in a mountain site. It ensures the large target mass for neutrinos and low-energy threshold for TeV gamma rays. The observational station is composed of 12 wide-angle high-precision telescope, which can cover completely all-sky view. Each telescope has a field-of-view of 50 deg. × 50 deg. and spot size resolution of 1 arcmin. To realize the ASHRA telescope concept, we newly apply the following techniques matured in the other fields: i) Baker-Nunn optics optimized to keep better than 1 arcmin. resolution in 50 deg. field of view, ii) electrostatic lens image intensifier tube (I IT) with the resolution matched with that of the above optics, iii) gated I IT with a fast image shutter, and iv) CMOS image sensor which read triggered images out of the above I IT.
Aita Y.
Aoki Tadao
Arai Yuichiro
Asaoka Yoichi
Browder Thomas
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