Title :
Performance of a neutron beam monitor with a GEM for the high-intensity total diffractometer at J-PARC
Author :
Ohshita, H. ; Uno, S. ; Otomo, T. ; Koike, T. ; Murakami, T. ; Sekimoto, M. ; Uchida, T.
Author_Institution :
High Energy Accel. Res. Organ. (KEK), Tsukuba, Japan
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
We are developing a neutron beam monitor with a gas electron multiplier (GEM) for the high-intensity total diffractometer at J-PARC. In order to analyze the basic characteristics of the GEM-based detector, a neutron irradiation test was carried out at J-PARC. The wavelength-spectrum distribution obtained from the test is consistent with the calculations, and the beam profiles agree with the simple Monte Carlo (MC) simulation. Therefore we found that as a neutron beam monitor, the GEM-based detector has good two-dimensional imaging ability.
Keywords :
diffractometers; ionisation chambers; neutron detection; position sensitive particle detectors; GEM-based detector; J-PARC; Monte Carlo simulation; gas electron multiplier; high-intensity total diffractometer; neutron beam monitor; neutron irradiation test; two-dimensional imaging ability; wavelength-spectrum distribution; Application specific integrated circuits; Diffraction; Gamma ray detection; Gamma ray detectors; Monitoring; Neutrons; Particle beams; Performance evaluation; Signal processing; Testing;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5402056
