Heat and radiation resistances of diamond semiconductor in gamma-ray detection
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2019-09-02 |
| Journal | Japanese Journal of Applied Physics |
| Authors | Katsunori Ueno, Takahiro Tadokoro, Yuichiro Ueno, Keisuke Sasaki, Satoshi Koizumi |
| Institutions | National Institute of Advanced Industrial Science and Technology, National Institute for Materials Science |
| Citations | 10 |
Abstract
Section titled āAbstractāWe 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.