TY - GEN
T1 - Simulation study for the higher sensitivity of an electron-tracking compton camera at over 1 MeV
AU - Takada, A.
AU - Tanimori, T.
AU - Kubo, H.
AU - Miuchi, K.
AU - Kabuki, S.
AU - Parker, J. D.
AU - Kishimoto, Y.
AU - Mizumoto, T.
AU - Ueno, K.
AU - Kurosawa, S.
AU - Iwaki, S.
AU - Sawano, T.
AU - Taniue, K.
AU - Nakamura, K.
AU - Higashi, N.
AU - Matsuoka, Y.
AU - Komura, S.
AU - Sato, Y.
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
KW - Compton Camera
KW - MeV gamma-ray astronomy
KW - TPC
KW - gaseous detector
UR - http://www.scopus.com/inward/record.url?scp=84858673070&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84858673070&partnerID=8YFLogxK
U2 - 10.1109/NSSMIC.2011.6154605
DO - 10.1109/NSSMIC.2011.6154605
M3 - Conference contribution
AN - SCOPUS:84858673070
SN - 9781467301183
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 1215
EP - 1221
BT - 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
Y2 - 23 October 2011 through 29 October 2011
ER -