| 日時: |
2003-01-14 16:00 - 17:00 |
| 場所: |
４号館 345 号室 |
| 会議名: |
Very High Energy Particle Astronomy with All-sky Survey High Resolution Air-shower telescope (ASHRA) [English] |
| 連絡先: |
takeshi.komatsubara kek.jp |
| 講演者: |
Makoto Sasaki (ICRR, Univ.Tokyo) |
| 講演言語: |
英語 |
| アブストラクト: |
The ASHRA detector consists of 3 observational stations
installed on the grid of 30-40km distance in a desert site, which ensures a large
target mass for neutrinos and a large effective aperture for UHECR. An observational station is composed of 12 wide-angle high-precision telescopes, which can completely cover all-sky view. In realizing the telescope design, we newly apply the following techniques
matured in the other fields:
1) Baker-Nunn optics optimized to keep better than 1 arcmin. resolution in 50 deg. field of view,
2) Electro-static lens
image-intensifier tube (IIT)
with the resolution matched
with that of the above optics,
3) Gated IIT with a fast image
shutter, and
4) CMOS image sensor which
reads triggered images out of
the above IIT.
These novel techniques allow us an excellent opportunity for simultaneous observation of air fluorescence and Cerenkov lights with 1 arcmin. resolution in entirely all sky. This will open a new field, "ObservationalParticle
Astrophysics" by continuously observing TeV gamma-rays VHE-neutrinos, Knee-CR, and UHECR with the energies from TeV to ZeV in all sky.
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