CAJ | 학술논문

随着BESIII漂移室运行时间的增加，其老化问题日趋严重，各种升级替换方案也在研究过程中。论文对替换方案之一的硅像素探测器（ SPT）的基本结构、探测原理和初步模拟工作进行了介绍。阐述了硅像素探测器的径迹重建算法的原理、算法的设计和开发。最后使用不同动量的单粒子径迹模拟事例对算法进行调试，并对匹配效率、重建性能和探测器物质量对算法的影响进行了检验和分析。
수착BESIII표이실운행시간적증가，기노화문제일추엄중，각충승급체환방안야재연구과정중。논문대체환방안지일적규상소탐측기（ SPT）적기본결구、탐측원리화초보모의공작진행료개소。천술료규상소탐측기적경적중건산법적원리、산법적설계화개발。최후사용불동동량적단입자경적모의사례대산법진행조시，병대필배효솔、중건성능화탐측기물질량대산법적영향진행료검험화분석。
The aging problem of the BESIII drift chamber is not negligible after running for years.And the study of schemes of upgrading or replacing the inner chamber is in process.The Silicon Pixel Tracker ( SPT) as one of the schemes.This paper describes the structure, the principle and the simulation of the SPT.The design, the flow and the development of the track reconstruction algorithm of the SPT is also introduced.Finally, single particle events are generated to debug the algorithm and to test efficiency and performance of the algorithm.