Diamond Radiation Detector with Built‐In Boron‐Doped Neutron Converter Layer
Diamond Radiation Detector with Built‐In Boron‐Doped Neutron Converter Layer
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具有内置掺硼中子转换器层的金刚石辐射探测器
DOI：
10.1002/pssa.202100315
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Mimura Hidenori
中科院分区：
文献类型：
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作者：
Miyake Taku;Nakagawa Hisaya;Masuzawa Tomoaki;Yamada Takatoshi;Nakano Takayuki;Takagi Katsuyuki;Aoki Toru;Mimura Hidenori
本文介绍了一种由含硼(B)中子层的聚晶金刚石制成的辐射探测器。该探测器采用热丝化学气相沉积技术，由未掺杂的独立多晶金刚石层和作为电接触和α-中子转换转换器的掺硼多晶金刚石顶层组成。介绍了金刚石膜的表征和探测器的工作原理。结果表明，B掺杂层是一种有效的中子-α转换器，可以用多道分析器在粒子计数模式下进行中子探测。
Herein, a radiation detector made of polycrystalline diamond with a boron (B)‐doped neutron converter layer is presented. The detector is fabricated by the hot filament chemical vapor deposition technique, and consists of an undoped free‐standing polycrystalline diamond layer and a B‐doped polycrystalline diamond top layer that serves as an electrical contact and a converter for neutron‐alpha conversion. Characterization of the diamond films and detector operation is presented. The results indicate that the B‐doped layer acts as an effective neutron‐alpha converter, whereby neutron detection is demonstrated in particle‐counting mode using a multichannel analyzer.