Title :
The performance of a single-crystal BGO annulus as a Compton-suppression detector
Author :
Ussery, L.E. ; Matthews, Scott K.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
The authors have tested a single-crystal bismuth-germanate (BGO) annulus in conjunction with a high-purity germanium (HPGe) detector as a Compton-suppressor spectrometer, and have measured gamma-ray energies of up to 6.13 MeV. The veto circuit is shown to significantly improve the quality of spectra for gamma rays in the few MeV range. The main problems are the large sizes of the detector cave entrance, which could be plugged with an extra BGO detector in the HPGe housing, and the thickness of the aluminum skin, which could be replaced with something thinner or more transparent.<>
Keywords :
gamma-ray detection and measurement; gamma-ray spectrometers; scintillation counters; semiconductor counters; 6.13 MeV; Al; Bi/sub 4/Ge/sub 3/O/sub 12/; Compton-suppression detector; Ge; HPGe; HPGe detector; gamma-ray energies; single-crystal BGO annulus; veto circuit; Aluminum; Energy measurement; Energy resolution; Gamma ray detection; Gamma ray detectors; Germanium; Photoelectricity; Pulse measurements; Spectroscopy; Testing;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1991., Conference Record of the 1991 IEEE
Conference_Location :
Santa Fe, NM, USA
Print_ISBN :
0-7803-0513-2
DOI :
10.1109/NSSMIC.1991.258891
