Optimization of resistive anode for a single photon imaging detector

Kai Yang; Bo Wang; Yonglin Bai; Weiwei Cao; Yang Yang; Bingli Zhu; Jinkun Zheng; Xiaohong Bai

doi:10.1117/12.2606769

24 November 2021 Optimization of resistive anode for a single photon imaging detector

Kai Yang, Bo Wang, Yonglin Bai, Weiwei Cao, Yang Yang, Bingli Zhu, Jinkun Zheng, Xiaohong Bai

Proceedings Volume 12065, AOPC 2021: Optical Sensing and Imaging Technology; 120652W (2021) https://doi.org/10.1117/12.2606769
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

A Finite Element Method (FEM) to establish the model of CAT resistive anode and Square resistive anode is proposed. The characteristics of electrode charge signal are analyzed. The factors that affect the position reconstruction linearity of resistive anode are analyzed, including the geometric parameters and sheet resistance of the surface resistive layer, by calculating the amount of electrode charge from a simulated photon hit. It has been concluded that signal development time should be greater than 8R'C' ( R'C' =RC / μ² ) seconds in order to ensure the root mean square (RMS) nonlinearity (%) of position reconstruction is less than 3% for these two resistive anodes, with capacitance C , and sheet resistance R of sensitive region.

Citation Download Citation

Kai Yang, Bo Wang, Yonglin Bai, Weiwei Cao, Yang Yang, Bingli Zhu, Jinkun Zheng, and Xiaohong Bai "Optimization of resistive anode for a single photon imaging detector", Proc. SPIE 12065, AOPC 2021: Optical Sensing and Imaging Technology, 120652W (24 November 2021); https://doi.org/10.1117/12.2606769

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