Title :
Feasibility of LaBr3(Ce) detector to measure nuclear resonance fluorescence from special nuclear materials
Author :
Omer, M. ; Negm, H. ; Zen, Heishun ; Daito, Izuru ; Kii, T. ; Masuda, Kohji ; Ohgaki, H. ; Hajima, Ryoichi ; Shizuma, Toshiyuki ; Hayakawa, Takeshi ; Kikuzawa, Nobuhiro
Author_Institution :
Inst. of Adv. Energy, Kyoto Univ., Uji, Japan
Abstract :
A nuclear resonance fluorescence (NRF) experiment was performed on a 235U target with the quasi-monochromatic γ-ray at High Intensity γ-ray Source (HIγS) using the 1733 keV resonant energy. A LaBr3(Ce) detector array consisting of 8 cylindrical detectors, each has length of 7.62 cm and a diameter of 3.81 cm, in diameter was implemented in this measurement. Moreover, high purity germanium (HPGe) detector array consisting of 4 detectors each has a relative efficiency of 60 %, was used as a benchmark for the measurement taken by LaBr3(Ce) detector array. The integrated cross-section of the NRF level measured with LaBr3(Ce) detector showed good agreement with the available data. Consequently, LaBr3(Ce) detector could be feasible to use as a detector for the special nuclear material inspection system.
Keywords :
gamma-ray detection; germanium radiation detectors; nuclear materials safeguards; solid scintillation detectors; 235U target; LaBr3(Ce) detector feasibility; NRF level integrated cross-section; cylindrical detectors; high intensity gamma-ray source; high purity germanium detector array; nuclear resonance fluorescence measurement; quasimonochromatic gamma-ray; scintillation detectors; special nuclear material inspection system; Arrays; Detectors; Fluorescence; Laser beams; Monitoring; Pollution measurement; Scattering; 235U; LaBr3(Ce) detectors; Nuclear resonance fluorescence;
Conference_Titel :
Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA), 2013 3rd International Conference on
Conference_Location :
Marseille
Print_ISBN :
978-1-4799-1046-5
DOI :
10.1109/ANIMMA.2013.6727969
