2012年
Simulation study for the higher sensitivity of an electron-tracking compton camera at over 1 MeV
IEEE Nuclear Science Symposium Conference Record
- 開始ページ
- 1215
- 終了ページ
- 1221
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1109/NSSMIC.2011.6154605
We have developed an Electron-Tracking Compton Camera (ETCC) as a next-generation MeV gamma-ray telescope. Our detector consists of a gaseous electron tracker as a Compton-scattering target and a position sensitive scintillation camera as a scattered gamma ray absorber. We launched a small size (10 cm cubic) ETCC loaded on a balloon in 2006, and obtained the fluxes of diffuse cosmic and atmospheric gamma rays in the energy range between 125 keV and 1:25 MeV. However, for MeV gamma-ray astronomy, we need to detect the photons at higher energy, thus we must improve the sensitivity of the ETCC in the higher energy range above 1 MeV. For this purpose, we investigate an electron absorber, which is placed between the electron tracker and the photo-absorber. Using Geant4 simulation, we confirmed that the detection energy range is shifted to the range of 0:35-5:0 MeV for the new configuration of the ETCC. © 2011 IEEE.
- リンク情報
- ID情報
-
- DOI : 10.1109/NSSMIC.2011.6154605
- ISSN : 1095-7863
- SCOPUS ID : 84858673070