pp. 537-544
S&M3192 Research Paper of Special Issue https://doi.org/10.18494/SAM4147 Published: February 20, 2023 Development of a Bragg-edge Neutron Transmission Imaging Detector Combined with Micro-structured Boron Cathode and Glass Gas Electron Multiplier [PDF] Takeshi Fujiwara, Koichi Kino, Nagayasu Oshima, and Michihiro Furusaka (Received October 18, 2022; Accepted January 12, 2023) Keywords: neutron detector, Bragg edge imaging, GEM, glass GEM, AISTANS
A neutron detector with a micro-structured boron cathode and a glass gas electron multiplier (GEM) has been developed for time-of-flight Bragg edge neutron transmission imaging. The detector has a field of view of 100 × 100 mm2 and 128 × 128 pixels (pixel size 0.8 × 0.8 mm2). The neutron imaging performance of the detector was evaluated at a compact electron accelerator-driven neutron source (AISTANS). By comparison with a Li-glass detector, we found that our detector has a detection efficiency of 5% for 4 Å neutrons. In addition, a preliminary time-of-flight neutron imaging test was performed to observe the difference between the face-centered and body-centered cubic crystal structures, from which we confirmed that our detector has sufficient stability and time resolution for use in Bragg edge imaging analysis.
Corresponding author: Takeshi FujiwaraThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Takeshi Fujiwara, Koichi Kino, Nagayasu Oshima, and Michihiro Furusaka, Development of a Bragg-edge Neutron Transmission Imaging Detector Combined with Micro-structured Boron Cathode and Glass Gas Electron Multiplier, Sens. Mater., Vol. 35, No. 2, 2023, p. 537-544. |