An energy resolved neutron imaging detector based on boron doped nMCP coupled with a time stamping optical camera

Energy resolved neutron imaging has developed rapidly due to its advantage on testing the inner structure of crystal samples. Neutron detector is one of the key components to determine the imaging results quality. The neutron sensitive microchannel plate (nMCP) has been widely used in energy resolve...

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Published inJournal of instrumentation Vol. 19; no. 1; p. P01015
Main Authors Tan, Jinhao, Song, Yushou, Zhou, Jianrong, Yang, Wenqin, Jiang, Xingfen, Zhou, Xiaojuan, Xia, Yuanguang, Liu, Shulin, Yan, Baojun, Liu, Hui, Wang, Songlin, Sun, Zhijia, Wei, Yadong, Chen, Yuanbo
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2024
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ISSN1748-0221
1748-0221
DOI10.1088/1748-0221/19/01/P01015

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Abstract Energy resolved neutron imaging has developed rapidly due to its advantage on testing the inner structure of crystal samples. Neutron detector is one of the key components to determine the imaging results quality. The neutron sensitive microchannel plate (nMCP) has been widely used in energy resolved neutron imaging experiments because of the high spatial and timing resolution. However, the ability to adjust field-of-view (FOV) and spatial resolution has not been realized in the nMCP detector, which is an attractive capability in energy resolved neutron imaging experiments. In this paper, an energy resolved neutron imaging detector was developed by coupling nMCP with a time stamping camera. The neutrons were absorbed by nMCP and converted into light through a phosphor screen. Then the light was focused on the camera by optical lens. A data algorithm was designed to improve the data quality. By changing the magnification of the optical lens, large FOV (46mm diameter) and high spatial resolution (26 μm) were realized in the experiments at CSNS beamline 20. The energy resolved ability was demonstrated by a Bragg-edge transmission imaging experiment for aluminum and stainless-steel samples. The performance of this detector makes it a promising candidate used in energy resolved neutron imaging.
AbstractList Energy resolved neutron imaging has developed rapidly due to its advantage on testing the inner structure of crystal samples. Neutron detector is one of the key components to determine the imaging results quality. The neutron sensitive microchannel plate (nMCP) has been widely used in energy resolved neutron imaging experiments because of the high spatial and timing resolution. However, the ability to adjust field-of-view (FOV) and spatial resolution has not been realized in the nMCP detector, which is an attractive capability in energy resolved neutron imaging experiments. In this paper, an energy resolved neutron imaging detector was developed by coupling nMCP with a time stamping camera. The neutrons were absorbed by nMCP and converted into light through a phosphor screen. Then the light was focused on the camera by optical lens. A data algorithm was designed to improve the data quality. By changing the magnification of the optical lens, large FOV (46mm diameter) and high spatial resolution (26 μm) were realized in the experiments at CSNS beamline 20. The energy resolved ability was demonstrated by a Bragg-edge transmission imaging experiment for aluminum and stainless-steel samples. The performance of this detector makes it a promising candidate used in energy resolved neutron imaging.
Energy resolved neutron imaging has developed rapidly due toits advantage on testing the inner structure of crystalsamples. Neutron detector is one of the key components to determinethe imaging results quality. The neutron sensitive microchannelplate (nMCP) has been widely used in energy resolved neutron imagingexperiments because of the high spatial and timingresolution. However, the ability to adjust field-of-view (FOV) andspatial resolution has not been realized in the nMCP detector, whichis an attractive capability in energy resolved neutron imagingexperiments. In this paper, an energy resolved neutron imagingdetector was developed by coupling nMCP with a time stampingcamera. The neutrons were absorbed by nMCP and converted into lightthrough a phosphor screen. Then the light was focused on the cameraby optical lens. A data algorithm was designed to improve the dataquality. By changing the magnification of the optical lens, largeFOV (46mm diameter) and high spatial resolution (26 μm) wererealized in the experiments at CSNS beamline 20. The energy resolvedability was demonstrated by a Bragg-edge transmission imagingexperiment for aluminum and stainless-steel samples. The performanceof this detector makes it a promising candidate used in energyresolved neutron imaging.
Author Jiang, Xingfen
Liu, Shulin
Zhou, Xiaojuan
Yan, Baojun
Xia, Yuanguang
Zhou, Jianrong
Chen, Yuanbo
Song, Yushou
Liu, Hui
Wang, Songlin
Yang, Wenqin
Tan, Jinhao
Sun, Zhijia
Wei, Yadong
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Snippet Energy resolved neutron imaging has developed rapidly due to its advantage on testing the inner structure of crystal samples. Neutron detector is one of the...
Energy resolved neutron imaging has developed rapidly due toits advantage on testing the inner structure of crystalsamples. Neutron detector is one of the key...
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SubjectTerms Algorithms
Energy
Imaging
Lenses
Neutrino detectors
Neutron counters
Neutron radiography
Neutron sources
Neutrons
Phosphors
Sensors
Spatial resolution
Stainless steels
Title An energy resolved neutron imaging detector based on boron doped nMCP coupled with a time stamping optical camera
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