Title :
Storage characteristics of KBr:Eu2+ phosphors with radiators by irradiation of fast neutrons
Author :
Sakasai, K. ; Iwamoto, Y. ; Toh, K. ; Nakamura, T. ; Takakura, K. ; Konno, C.
Author_Institution :
J-PARC Center, Japan Atomic Energy Agency, Tokai, Japan
fDate :
Oct. 30 2010-Nov. 6 2010
Abstract :
Storage characteristics of KBr:Eu2+ phosphor were investigated when the phosphor was irradiated by fast neutron with energy of 14.8 MeV. To improve the fast neutron sensitivity, polyethylene (PE) sheets as a proton generator were set in front of the phosphors. The maximum photostimulated luminescence (PSL) yields were obtained at a PE thickness of about 3 mm. These experimental results well agreed with those by Monte Carlo simulation using PHITS code. Estimated PSL yields by gamma-ray associated with fast neutron fields were negligible. This combination use of such phosphors and PE sheets will be usable for fast neutron monitoring or imaging in a high gamma-ray field.
Keywords :
gamma-ray detection; neutron detection; photoluminescence; polymers; scintillation counters; Monte Carlo simulation; PHITS code; fast neutron irradiation effect; fast neutron monitoring; fast neutron sensitivity; high gamma-ray field imaging; phosphor storage characteristics; photostimulated luminescence yield; polyethylene sheet; Imaging; Luminescence; Neutrons; Phosphors; Protons; Radiation effects; Sensitivity;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2010 IEEE
Conference_Location :
Knoxville, TN
Print_ISBN :
978-1-4244-9106-3
DOI :
10.1109/NSSMIC.2010.5873906
