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

fYear

2013

fDate

23-27 June 2013

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ANIMMA.2013.6727969

Filename

6727969