强激光与粒子束, 2008, 20 (4): 653, 网络出版: 2008-08-17   

用于质子和伽马射线探测的金刚石薄膜探测器的辐照性能

Irradiation effects of
作者单位
1 清华大学,工程物理系,北京,100084
2 西北核技术研究所,西安,710024
3 北京科技大学,材料学院,北京,100083
摘要
研制出CVD金刚石薄膜探测器,在国家串列加速器和60Co稳态辐射源上分别完成了该探测器对9MeV质子束流和1.25 MeV γ射线的辐照性能研究.结果表明:该探测器在9 MeV质子照射累积强度达到1013cm-2时,探测器信号电荷收集效率减小量低于3.5%,辐照前后探测器暗电流没有明显变化.计算得到9MeV质子对该探测器的损伤系数为1.3×10-16 μm-1·cm2.由于γ射线与金刚石作用产生的电子起到了填补缺陷的作用,探测器信号电荷收集效率随γ射线照射剂量的增加略有增加,在γ射线累积照射量达到10.32C/kg时,其增幅小于0.7%.说明金刚石薄膜探测器具有较高耐辐照强度,适用于高强度辐射测量领域.proton and gamma -ray on CVD diamond detector
Abstract
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王兰, 欧阳晓平, 范如玉, 张忠兵, 潘洪波, 刘林月, 吕反修. 用于质子和伽马射线探测的金刚石薄膜探测器的辐照性能[J]. 强激光与粒子束, 2008, 20(4): 653. 王兰, 欧阳晓平, 范如玉, 张忠兵, 潘洪波, 刘林月, 吕反修. Irradiation effects of[J]. High Power Laser and Particle Beams, 2008, 20(4): 653.

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