A new generation γ-ray camera for planetary science applications:: High pressure xenon time projection chamber

被引：17
作者：
Kobayashi, S
Hasebe, N
Hosojima, T
Igarashi, T
Kobayashi, MN
Mimura, M
Miyachi, T
Miyajima, M
Pushkin, KN
Sakaba, H
Tezuka, C
Doke, T
Shibamura, E
机构：
[1] Waseda Univ, Adv Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan
[2] State Univ, Moscow Engn Phys Inst, Moscow 115409, Russia
[3] Waseda Univ, Kikuicho Branch, Adv Res Inst Sci & Engn, Tokyo 1620044, Japan
[4] Saitama Prefectural Univ, Coll Hlth Sci, Koshigaya, Saitama 3438540, Japan
来源：
MOON AND NEAR-EARTH OBJECTS | 2006年 / 37卷 / 01期
关键词：
high-pressure xenon gas; time-projection chamber; planetary mission; gamma-ray camera;
D O I：
10.1016/j.asr.2005.05.106
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
A new gamma-ray imaging camera based on High-pressure Xe Time-Projection-Chamber (HPXe-TPC) allows us to simultaneously determine arrival direction and its energy of individual incident gamma rays. HPXe-TPC is a promising y-ray detector for planetary science which provides means of global mapping of elemental composition in planetary surface as the remote sensing spectrometer. The simulation study by Geant4 and numerical calculation show that the angular resolution is mostly affected by multiple scattering of the recoil electron, and position resolution of electrodes of TPC. It is found that the angular resolution is 9 degrees (50%) at 2 MeV for gamma rays. The feasibility of HPXe-TPC is discussed as a y-ray imaging camera for future planetary mission. (C) 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：28 / 33
页数：6
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