Heat and radiation resistances of diamond semiconductor in gamma-ray detection
Heat and radiation resistances of diamond semiconductor in gamma-ray detection
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伽马射线探测中金刚石半导体的耐热性和耐辐射性
DOI：
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发表时间：
2019
影响因子：
1.5
通讯作者：
J. Kaneko
中科院分区：
文献类型：
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作者：
K. Ueno;T. Tadokoro;Y. Ueno;K. Sasaki;S. Koizumi;A. Chayahara;Y. Mokuno;S. Hirano;J. Kaneko
我们开发了一种基于单晶金刚石的伽马射线探测器，以提高伽马射线监视器的耐热性和耐辐射性。我们用化学气相沉积法生长的两种类型的金刚石制造了原型。使用 137Cs 伽马射线源获得计数率随温度和累积剂量的变化，然后使用减少暗计数的方法评估满量程误差 (%FS)。原型 A 在 2.9%FS 内工作到 643 K，在 4.9%FS 内工作到 3.1 MGy；另一方面，原型 B 在 3.4%FS 内工作到 545 K，在 0.47%FS 内工作到 5.0 MGy。这项研究表明，金刚石半导体具有增强的耐热性和耐辐射性，有望用于监测。
We have developed a gamma-ray detector based on a single-crystal diamond in order to improve the heat and radiation resistances of gamma-ray monitors. We fabricated prototypes with two types of diamond grown by a chemical vapor deposition method. The count rates with temperature and accumulated dose were obtained using a 137Cs gamma-ray source, then the errors at full scale (%FS) were evaluated using a method to reduce the dark count. The prototype-A worked to 643 K within 2.9%FS and to 3.1 MGy within 4.9%FS; on the other hand, the prototype-B worked to 545 K within 3.4%FS and to 5.0 MGy within 0.47%FS. This study demonstrates that the diamond semiconductor was promising for monitoring with enhanced heat and radiation resistances.
影响因子：
2.4
作者：
Hodgson, M.;Lohstroh, A.;Thomas, D.
通讯作者：
Thomas, D.