SSCT for the observation of cosmic gamma rays in the GeV region

Conference · Fri Apr 05 00:00:00 EST 1991 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:5610546

Doke, T; Kashiwagi, T; Kikuchi, J ^[1]; Murakami, H; Nakamoto, A ^[2]; Kasahara, K; Yuda, T ^[3]; Masuda, K ^[4]; Torii, S ^[5]; Muraki, Y ^[6]; Akimov, V V; Leikov, N G ^[7]

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1. Science and Engineering Research Lab., Waseda Univ., Shinjuku, Tokyo, 162 (JP)
2. Department of Physcis, Rikkyo Univ., Toshima, Tokyo, 171 (JP)
3. Institute of Cosmic-Ray Research, Univ. of Tokyo, Tanashi, Tokyo, 188 (JP)
4. Saitama College of Health, Urawa, 338 (JP)
5. Faculity of Engineering, Kanagawa Univ., Rokkakubashi, Yokohama, 221 (JP)
6. Solar-Terrestrial Environment Lab., Nagoya Univ., Chigusa, Nagoya, 464 (JP)
7. Space Research Institute of the Academy of Science, USSR (SU)

A scintillating fiber sampling calorimeter telescope (SSCT (SF)) is proposed which is to be operated on board a satellite for the observation of cosmic gamma rays ranging from 200 MeV to 200 GeV. The idea of SSCT (SF) is based on the experience in developing a Si(Li)/Pb sampling calorimeter telescope (SSCT (Si)); SSCT(SF) replaces the Si detectors in SSCT(Si) by scintillating fibers. Some key parameters of SSCT(Si) are: the active area is 2,500 cm{sup 2}, effective area 1,500 cm{sup 2}, the median angular reoslution 1.6{degree} at 1 GeV, 0.34{degree} at 10 GeV, 0.21{degree} at 30 GeV, and the r.m.s energy resolution is 20, 17 and 18% at 1, 10 and 100 GeV, respectively. If a thicker calorimeter is used, 17%/{radical}{ital E}(GeV) is possible. SSCT(SF) is now under development. From a preliminary test, we expect that the angular resolution of SSCT(SF) is, at worst, almost the same as SSCT(Si), and the energy resolution could be better than 30% at 1 GeV. Probably almost the same energy resolution is obtainable. An effective area of one order of magnitude larger than the EGRET can be attained with a low cost.

• OSTI ID: 5610546
• Report Number(s): CONF-9010289-; CODEN: APCPC; TRN: 91-021936
• Journal Information: AIP Conference Proceedings (American Institute of Physics); (United States), Vol. 220:1; Conference: International conference on high energy gamma ray astronomy, Ann Arbor, MI (United States), 2-5 Oct 1990; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CALORIMETERS
DESIGN
COSMIC GAMMA SOURCES
GAMMA DETECTION
GAMMA ASTRONOMY
ENERGY RESOLUTION
GEV RANGE
MEV RANGE 100-1000
PERFORMANCE
ASTRONOMY
COSMIC RAY SOURCES
DETECTION
ENERGY RANGE
MEASURING INSTRUMENTS
MEV RANGE
RADIATION DETECTION
RESOLUTION
440104* - Radiation Instrumentation- High Energy Physics Instrumentation