Natural diamond detector as a high energy particle spectrometer
Natural diamond detector as a high energy particle spectrometer
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天然金刚石探测器作为高能粒子光谱仪
DOI：
10.1109/23.682413
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发表时间：
1997
影响因子：
1.6
通讯作者：
Y. Kaschuck
中科院分区：
文献类型：
--
作者：
A. V. Krasilnikov;V. Amosov;Y. Kaschuck
天然金刚石探测器（NDD）是在俄罗斯开发的，并已被用于高功率托卡马克实验中的氘氚（DT）中子和高能粒子光谱测定。NDD本身具有金属-绝缘体-金属结构，其中金属是Au、Ti/Mo/Au或Ti/Pt/Au，绝缘体选择非常纯的天然金刚石。高的带隙、电阻率和击穿电阻、大的饱和速度和平均自由漂移时间（10-15 ns）是用于辐射探测器的材料的非常重要的性质。基于所选天然金刚石的大（高达几毫米）电荷收集距离的NDD光谱学应用。我们最好的探测器的能量分辨率在1.5- 3%的范围内。这种高分辨率加上金刚石的高抗辐射性（5*10/sup 14/ n/cm/sup 2/），使它们成功地应用于SNEG-13、FNG、NS中子发生器和托卡马克TFTR和JT-60 U实验中的14 MeV中子能谱和通量监测。NDD在极高温度下工作的可能性使其成为未来燃烧等离子体和其他高能物理实验中中子和高能粒子光谱测量的理想选择。
Natural Diamond Detectors (NDD) were developed in Russia and have been used for deuterium-tritium (DT) neutron, and energetic particles spectrometry during high power tokamak experiments. The NDD itself has a metal-insulator-metal structure, where metal is Au, Ti/Mo/Au or Ti/Pt/Au and insulator is selected very pure natural diamond. A high band gap, resistivity and break down resistance, large saturation velocity and mean free drift time (10-15 ns) are very important properties for materials for radiation detectors. Spectrometry application of NDD based on big (up to some mm) charge collection distance of selected natural diamonds. The energy resolution of our best detectors was in the range 1.5-3%. Such high resolution coupled with the high radiation resistance of diamonds (5*10/sup 14/ n/cm/sup 2/) provided their successful application for 14 MeV neutron spectrometry and flux monitoring in experiments on SNEG-13, FNG, NS neutron generators, and tokamaks TFTR and JT-60U. The possibility of its operation at extremely high temperatures makes the NDD ideal for neutron and high energy particles spectrometry in future burning plasma and other high energy physics experiments.