Study on the neutron imaging detector with high spatial resolution at China Spallation Neutron Source

Xingfen Jiang; Qinglei Xiu; Jianrong Zhou; Jianqing Yang; Jinhao Tan; Wenqin Yang; Lianjun Zhang; Yuanguang Xia; Xiaojuan Zhou; Jianjin Zho; Lin Zhu; Haiyun Teng; Gui-an Yang; Yushou Song; Zhijia Sun; Yuanbo Chen

doi:https://doi.org/10.1016/j.net.2020.12.009

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자료유형: 학술저널

저자정보: Xingfen Jiang (Chinese Academy of Science) Qinglei Xiu (Chinese Academy of Science) Jianrong Zhou (Chinese Academy of Science) Jianqing Yang (Chinese Academy of Science) Jinhao Tan (Chinese Academy of Science) Wenqin Yang (Chinese Academy of Science) Lianjun Zhang (Chinese Academy of Science) Yuanguang Xia (Chinese Academy of Science) Xiaojuan Zhou (Chinese Academy of Science) Jianjin Zho (Chinese Academy of Science) Lin Zhu (Chinese Academy of Science) Haiyun Teng (Chinese Academy of Science) Gui-an Yang (Chinese Academy of Science) Yushou Song (Chinese Academy of Science) Zhijia Sun (Chinese Academy of Science) Yuanbo Chen (Chinese Academy of Science)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제6호

발행연도: 2021.6

수록면: 1,942 - 1,946 (5page)

DOI: https://doi.org/10.1016/j.net.2020.12.009

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Gadolinium oxysulfide (GOS) is regarded as a novel scintillator for the realization of ultra-high spatialresolution in neutron imaging. Monte Carlo simulations of GOS scintillator show that the capability of itsspatial resolution is towards the micron level. Through the time-of-flight method, the light output of aGOS scintillator was measured to be 217 photons per captured neutron, ~100 times lower than that of aZnS/LiF:Ag scintillator. A detector prototype has been developed to evaluate the imaging solution withthe GOS scintillator by neutron beam tests. The measured spatial resolution is ~36 mm (28 line pairs/mm)at the modulation transfer function (MTF) of 10%, mainly limited by the low experimental collimationratio of the beamline. The weak light output of the GOS scintillator requires an enormous increase in theneutron flux to reduce the exposure time for practical applications.

#Neutron imaging detector #Spatial resolution #Gadolinium oxysulfide (GOS) scintillator #Light output

참고문헌 (7)

참고문헌 신청

S. H. Williams / 2012 / Detection system for microimaging with neutrons / J. Instrum 7

E.H. Lehmann / 2007 / The micro-setup for neutron imaging: A major step forward to improve the spatial resolution / Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 576(2-3):389~396

P. Trtik / 2016 / Progress in high-resolution neutron imaging at the Paul scherrer institut-the neutron microscope Project / J. Phys. Conf. Ser., Institute of Physics Publishing 746

G. Frei / 2009 / The neutron micro-tomography setup at PSI and its use for research purposes and engineering applications / Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 605(1-2):111~114

Pavel Trtik / 2015 / Isotopically-enriched gadolinium-157 oxysulfide scintillator screens for the high-resolution neutron imaging / Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 788:67~70

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