论文标题
厚obra气态检测器的光学读数研究
Optical Readout Studies of the Thick-COBRA Gaseous Detector
论文作者
论文摘要
使用光学读数技术研究了厚孔（THCOBRA）气态检测器的性能。描述了该设备的运行原理，突出显示了其在AR/CF4（80/20％）的气体混合物中的操作，用于可见的闪烁光发射。可视化对孔和阳极条的总增益的贡献，它随施加的偏置电压的函数而可视化。通过分析55FE源的5.9keV X射线发射的光发射，证明了从初始电离中保存空间信息。从孔中观察到的闪烁光的不均匀性比孔的音调更好地支持了空间定位精度的主张。鉴于新优化结构的发展，获取的图像用于识别弱点和不稳定性的来源。
The performance of a Thick-COBRA (THCOBRA) gaseous detector is studied using an optical readout technique. The operation principle of this device is described, highlighting its operation in a gas mixture of Ar/CF4 (80/20%) for visible scintillation light emission. The contributions to the total gain from the holes and the anode strips as a function of the applied bias voltage were visualized. The preservation of spatial information from the initial ionizations was demonstrated by analyzing the light emission from 5.9keV X-rays of an 55Fe source. The observed non-uniformity of the scintillation light from the holes supports the claim of a space localization accuracy better than the pitch of the holes. The acquired images were used to identify weak points and sources of instabilities in view of the development of new optimized structures.
