Performance of a neutron beam monitor with a GEM for the high-intensity total diffractometer at J-PARC

H Ohshita,S Uno, Toshio Otomo,Takahisa Koike,Toshio Murakami,Michiko Sekimoto,T Uchida

Nuclear Science Symposium Conference Record（2009）

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摘要

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.

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关键词

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,neutrons,detectors,imaging,spectrum,monte carlo

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