Libin WANG, Yiyun ZHANG, Guangwei HUANG, Zhihai MA, Shanxue XI, Kun WU, Xin ZHAO, Yushou SONG, Chunzhi ZHOU, Haijun LI, Huilan LIU. Single crystal diamond detector for gamma dose measurement[J]. NUCLEAR TECHNIQUES, 2025, 48(3): 030401
- NUCLEAR TECHNIQUES
- Vol. 48, Issue 3, 030401 (2025)
Fig. 1. Materials characterization of SCD (a) Surface roughness, (b) X-ray diffraction pattern, (c) Photoluminescence spectrum, (d) Raman spectrum
Fig. 2. Structure diagram of SCD detector (a) and the snapshot of fabricated diamond detector in this study (b)
Fig. 3. Electrical characteristics of single crystal diamond detectors (a) I-V characteristics of fabricated detector in this study, (b) I-V characteristics of MICRON detector, (c) C-V characteristics of fabricated detector in this study
Fig. 4. Block diagram of 238Pu α response spectrum testing system (a) and energy spectrum test results of energy spectrum (b)
Fig. 5. Relationship between the count rate of SCD detector and the γ dose rate(a) Fabricated detector in this study, (b) MICRON detector
Fig. 6. Variation of the count rate of the diamond detector with cumulative dose
Fig. 7. Variation of SCD detector photocurrent with irradiation γ dose rate(a) Fabricated detector in this study, (b) MICRON SCD detector
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