Design of a prototype microchannel plate detector with cooled amorphous silicon array readout for neutron radiography

Ambrosi, Richard M.; Fraser, George W.; Street, R. A.; Watterson, J.I.W.; Lanza, R.; Dowson, J.; Abbey, A. F.; Feller, Bruce; Downing, Greg; White, Paul L.; Stevenson, T.

doi:10.1016/j.nima.2005.01.147

Cited by 9 publications

(2 citation statements)

References 19 publications

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“…plastic ones [3][4][5]; (2) MCPs with amorphous silicon arrays [6,7]; (3) position-sensitive GEMs with hydrogen-rich converters [8,9]; and (4) hydrogen-rich plastic converters with imaging plates [10,11]. These systems exhibit a contradiction between the detection efficiency and spatial resolution.…”

Section: Introductionmentioning

confidence: 99%

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Sipm Readout

Chen,

Tang,

Chen

et al. 2024

Preprint

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Development of the fast neutron radiography with higher penetration capability in Non-Destructive Testing (NDT) techniques is rapidly. The detection efficiency and the imaging spatial resolution are the main problem of the radiography detector for many fast neutron imaging systems. In this paper, a detector composed of pixelated EJ200 scintillator array，an 16 × 16 silicon-photomultipliers (SiPM) array, and a capacitive multiplexing network readout electronics is designed. Using Monte-Carlo simulations，the main parameters of the detector was optimization. Then the detector prototype was fabricated and tested at a 14 MeV D-T neutron source. The preliminary test results showed that the prototype has spatial resolution of 1.26 mm. Using pixelated scintillator structure，the conflict between spatial resolution and detect efficiency could improved. Moreover, SiPMs offer a flexibility for the expansion of application field of the imaging system due to their excellent photon detection performance, relatively low price and joint possibility for large area.

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Section: Introductionmentioning

confidence: 99%

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Sipm Readout

Chen,

Tang,

Chen

et al. 2024

Preprint

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“…Conventional detector systems used in fast neutron imaging can be classified into the following categories: (1) photosensitive element charge-coupled device (CCD) cameras or complementary metal oxide semiconductor (COMS) cameras with neutron-photon converters, mainly hydrogen-rich plastic converters [3][4][5]; (2) microchannel plates (MCPs) with amorphous silicon arrays [6,7]; (3) position-sensitive gaseous electron multipliers (GEMs) with hydrogen-rich converters [8,9]; and (4) hydrogen-rich plastic converters with imaging plates [10,11]. These systems exhibit a contradiction between detection efficiency and spatial resolution.…”

Section: Introductionmentioning

confidence: 99%

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Silicon Photomultiplier Readouts

Chen,

Tang,

Chen

et al. 2024

Applied Sciences

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Among non-destructive testing (NDT) techniques, fast neutron radiography with a higher penetration capability has achieved rapid advancements. However, the application of the radiography detector in many fast neutron imaging systems is limited by unfavorable detection efficiency and imaging spatial resolution. In this paper, a fast neutron radiography detector was designed, which was composed of a pixelated EJ200 scintillator array, a 16 × 16 silicon photomultiplier (SiPM) array, and capacitive multiplexing network readout electronics. The main parameters of the detector were optimized using Monte Carlo simulations. In addition, the prototype of the detector was fabricated and tested under a 14 MeV D-T neutron source. The preliminary test results demonstrated that the spatial resolution of the prototype reached 1.2 mm. Moreover, the conflict between spatial resolution and detection efficiency could be mitigated by using a pixelated scintillator structure. Overall, SiPMs enabled the extensive application of the imaging system because of their excellent photon detection performance, relatively low price, and joint possibility for large areas.

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Neutron Detectors for Imaging

Crow

2009

Neutron Imaging and Applications

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Design of a prototype microchannel plate detector with cooled amorphous silicon array readout for neutron radiography

Cited by 9 publications

References 19 publications

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Sipm Readout

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Sipm Readout

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Silicon Photomultiplier Readouts

Neutron Detectors for Imaging

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