Development of Event-Type Neutron Imaging Detectors at the Energy-Resolved Neutron Imaging System RADEN at J-PARC

Development of Event-Type Neutron Imaging Detectors at the Energy-Resolved Neutron Imaging System RADEN at J-PARC

Joseph Don Parker, Masahide Harada, Hirotoshi Hayashida, Kosuke Hiroi, Tetsuya Kai, Yoshihiro Matsumoto, Takeshi Nakatani, Kenichi Oikawa, Mariko Segawa, Takenao Shinohara, Yuhua Su, Atsushi Takada, Toru Tanimori, Yoshiaki Kiyanagi

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Abstract. At the RADEN beam line of the Materials and Life Science Experimental Facility at the Japan Proton Accelerator Research Complex, we combine cutting-edge, event-type imaging detectors with a high-intensity, pulsed neutron beam to perform energy-resolved neutron imaging. In particular, the µNID (Micropixel-chamber-based Neutron Imaging Detector), with its unique combination of a large 10 cm × 10 cm field-of-view, 100 µm spatial resolution, and recent improvements in the rate performance to over 1 Mcps, is quickly becoming the main event-type detector for such measurements at RADEN. To improve the ease-of-use of the µNID system, we have recently redesigned the control hardware and software to allow full integration into the RADEN experiment control system and developed a web-based user interface for data processing. Further development efforts for the µNID, including a new reduced-pitch readout for improved spatial resolution and a boron-converter based µNID that achieves a count rate of over 20 Mcps, are also ongoing. In addition, we are studying super resolution methods to improve the spatial resolution of a lithium-glass scintillator pixel detector.

Keywords
Energy-Resolved Neutron Imaging, Neutron Imaging Detectors, Micropattern Detectors, Lithium Glass Scintillators

Published online 1/5/2020, 6 pages
Copyright © 2020 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Joseph Don Parker, Masahide Harada, Hirotoshi Hayashida, Kosuke Hiroi, Tetsuya Kai, Yoshihiro Matsumoto, Takeshi Nakatani, Kenichi Oikawa, Mariko Segawa, Takenao Shinohara, Yuhua Su, Atsushi Takada, Toru Tanimori, Yoshiaki Kiyanagi, Development of Event-Type Neutron Imaging Detectors at the Energy-Resolved Neutron Imaging System RADEN at J-PARC, Materials Research Proceedings, Vol. 15, pp 102-107, 2020

DOI: https://doi.org/10.21741/9781644900574-17

The article was published as article 17 of the book Neutron Radiography

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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