TY - JOUR
T1 - Development of an 8×8 array of LaBr3(Ce) scintillator pixels for a gaseous Compton gamma-ray camera
AU - Kurosawa, S.
AU - Kubo, H.
AU - Hattori, K.
AU - Ida, C.
AU - Iwaki, S.
AU - Kabuki, S.
AU - Kubo, A.
AU - Kunieda, E.
AU - Miuchi, K.
AU - Nakahara, T.
AU - Nishimura, H.
AU - Parker, J. D.
AU - Takada, A.
AU - Takahashi, M.
AU - Tanimori, T.
AU - Ueno, K.
N1 - Funding Information:
This work was supported by SENTAN, JST and a Grant-in-Aid from the Global COE Program “The Next Generation of Physics, Spun from Universality and Emergence” from MEXT, Japan.
PY - 2010/11/1
Y1 - 2010/11/1
N2 - We have developed LaBr3(Ce) pixel scintillator arrays for an electron-tracking Compton camera (ETCC) that consists of a gaseous time projection chamber (TPC) and the scintillators. The TPC measures the three-dimensional track and energy of a Compton recoil electron, while the scintillators measure the energy and position of the scattered gamma ray. Therefore, the ETCC is able to reconstruct Compton scattering event by event. We adopted LaBr3(Ce) scintillators because the angular resolution of the ETCC depends on the energy resolution of the scintillators, and LaBr 3(Ce) has an FWHM energy resolution of about 3% at 662 keV using a single-anode photomultiplier tube (PMT). We have developed an 8×8 array of LaBr3(Ce) scintillator pixels with a pixel size of 5.8×5.8×15.0 mm3, which has an FWHM energy resolution of 5.8±0.9% at 662 keV when coupled to a multi-anode PMT (Hamamatsu H8500). The ETCC with the LaBr3(Ce) arrays has an FWHM angular resolution of 4.2±0.3° at 662 keV.
AB - We have developed LaBr3(Ce) pixel scintillator arrays for an electron-tracking Compton camera (ETCC) that consists of a gaseous time projection chamber (TPC) and the scintillators. The TPC measures the three-dimensional track and energy of a Compton recoil electron, while the scintillators measure the energy and position of the scattered gamma ray. Therefore, the ETCC is able to reconstruct Compton scattering event by event. We adopted LaBr3(Ce) scintillators because the angular resolution of the ETCC depends on the energy resolution of the scintillators, and LaBr 3(Ce) has an FWHM energy resolution of about 3% at 662 keV using a single-anode photomultiplier tube (PMT). We have developed an 8×8 array of LaBr3(Ce) scintillator pixels with a pixel size of 5.8×5.8×15.0 mm3, which has an FWHM energy resolution of 5.8±0.9% at 662 keV when coupled to a multi-anode PMT (Hamamatsu H8500). The ETCC with the LaBr3(Ce) arrays has an FWHM angular resolution of 4.2±0.3° at 662 keV.
KW - Compton camera
KW - LaBr(Ce)
KW - Scintillator array
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U2 - 10.1016/j.nima.2010.02.211
DO - 10.1016/j.nima.2010.02.211
M3 - Article
AN - SCOPUS:77955876195
SN - 0168-9002
VL - 623
SP - 249
EP - 251
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 1
ER -