Optimizing centroiding using indexed table lookup: Application to crossed-strip readout
An-Peng La,
Wen-Wen Zhang,
Yang Yang,
Jin-Kun Zheng,
Yong-Lin Bai,
Yu-Chao Song,
Jin-Yao Duan,
Yanxin Zhang,
Fang Wang,
Hua Zhao
Affiliations
An-Peng La
Xi’an University of Posts and Telecommunications, Xi’an 710121, China
Wen-Wen Zhang
Xi’an University of Posts and Telecommunications, Xi’an 710121, China
Yang Yang
Key Laboratory of Ultra-fast Photoelectric Diagnostic Technology, Xi’an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences, Xi’an 710119, China
Jin-Kun Zheng
Key Laboratory of Ultra-fast Photoelectric Diagnostic Technology, Xi’an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences, Xi’an 710119, China
Yong-Lin Bai
Key Laboratory of Ultra-fast Photoelectric Diagnostic Technology, Xi’an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences, Xi’an 710119, China
Yu-Chao Song
Xi’an University of Posts and Telecommunications, Xi’an 710121, China
Jin-Yao Duan
Key Laboratory of Ultra-fast Photoelectric Diagnostic Technology, Xi’an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences, Xi’an 710119, China
Yanxin Zhang
Beijing Institute of Tracking and Telecommunication Technology, Beijing 100049, China
Fang Wang
Beijing Institute of Tracking and Telecommunication Technology, Beijing 100049, China
Hua Zhao
Beijing Institute of Tracking and Telecommunication Technology, Beijing 100049, China
This paper introduces a hybrid readout system for a cross-strip position-sensitive anode detector that combines a lookup table and weighted averaging. The lookup table approach is used to identify event channels and select appropriate weights based on the corresponding index code for calculating the centroid of the electron cloud. This effectively enhances the readout system’s processing speed while preserving the high-resolution advantage of the cross-strip position-sensitive anode. Simulations were performed to evaluate the performance of the system. Experimental results demonstrate that this readout method achieves an event processing speed exceeding 10 MHz while maintaining a resolution of 17.96 lp/mm.
