Charge Coupled Devices (CCDs) have been successfully used in several high energy physics experiments over the past two decades. Their high spatial resolution and thin sensitive layers make them an excellent tool for studying short-lived particles. The Linear Collider Flavour Identification (LCFI) collaboration is developing Column-Parallel CCDs (CPCCDs) for the vertex detector of a future Linear Collider. The CPCCDs can be read out many times faster than standard CCDs, significantly increasing their operating speed. An Analytic Model has been developed for the determination of the charge transfer inefficiency (CTI) of a CPCCD. The CTI values determined with the Analytic Model agree largely with those from a full TCAD simulation. The Analytic Model allows efficient study of the variation of the CTI on parameters like readout frequency, operating temperature and occupancy.
翻译:在过去二十年中,在若干高能量物理实验中成功地使用了电荷组合装置(CCDs),这些装置的高空间分辨率和薄敏感层使得它们成为研究短寿命粒子的极好工具。线形相撞浮动识别(LCFI)合作正在为未来线形对流机的脊椎探测器开发一列加热共聚CCDs(CPCCDs ) 。CPCCDs可以比标准的CCDs读得快许多倍,大大加快了运行速度。为了确定CPCCD的电源转移效率(CTI),开发了一个分析模型。与分析模型决定的CTI值与全面TCAD模拟值基本一致。分析模型使得能够有效地研究CTI在读出频率、运行温度和占用率等参数上的变异性。