| CVD金刚石辐射探测器研制及性能测试 |
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| 引用本文： | 周海洋,朱晓东,詹如娟.CVD金刚石辐射探测器研制及性能测试[J].物理学报,2010,59(3):1620-1624. |
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| 作者姓名： | 周海洋 朱晓东 詹如娟 |
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| 作者单位： | 中国科学院基础等离子体物理重点实验室，中国科学技术大学物理学院近代物理系，合肥 230026 |
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| 基金项目： | 国家重点基础研究发展计划（批准号：2008CB717800）和国家高技术研究发展计划（批准号：2003AA84TS18）资助的课题. |
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| 摘 要： | 电学性质优异的金刚石膜是理想的辐射探测器材料,用自支撑金刚石膜研制了辐射探测器,进行了探测器的性能测试.探测器采用的是"叉指"状共面型电极结构,探测器的有效探测区面积为3mm×3mm,探测器的连接接口是L16电缆头.探测器暗电流与电压呈线性变化的关系,表明金属电极与金刚石基底之间是欧姆型电接触.当两电极之间的电场场强为30kV/cm时,探测器的暗电流仅约为0·1nA,探测器信号的上升时间为590ps,探测器的灵敏度约110mA/W,而且探测器有较好的剂量率线性特性.
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| 关 键 词： | CVD金刚石 辐射探测器 |
| 收稿时间： | 6/5/2009 12:00:00 AM |
Fabrication and performance of CVD diamond radiation detector |
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| Zhou Hai-Yang,Zhu Xiao-Dong,Zhan Ru-Juan.Fabrication and performance of CVD diamond radiation detector[J].Acta Physica Sinica,2010,59(3):1620-1624. |
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| Authors: | Zhou Hai-Yang Zhu Xiao-Dong Zhan Ru-Juan |
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| Abstract: | Radiation detector of high performance was fabricated using free-standing thick CVD diamond films. The CVD diamond detector has "cross-finger" coplanar electrodes. The electrical contact between electrodes and diamond films is ohmic. The effective area is 3 × 3 mm~2. When working under electric field strength of 30 kV/cm, the dark current of the detector is only about 0.1 nA, the rise time of the signal is about 590 ps, its sensitivity is about 110 mA/W. Besides, the detector has fairly good linearity on dose rate. |
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| Keywords: | CVD diamond radiation detector |
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