硅微条探测器因具有很强的位置分辨率与能量分辨率而在世界各大核物理实验室得到广泛应用。中国科学院近代物理研究所研制了性能优越、位置精度达到0.5 mm×0.5 mm的双面硅微条探测器，用于HIRFL-CSR的外靶实验终端谱仪(ETF)上，用作径迹测量以及?E-E望远镜系统?E的探测。硅微条探测器体积小、集成度高，利用柔性印刷电路板(FPCB)引出信号，配合ASIC芯片的前端电路，能够方便地给出每一条的能量信息和位置信息。在此详细阐述了在HIRFL-CSR的ETF上双面硅微条探测器阵列的搭建，并测量了放射源在真空中探测单元的能量分辨本领。结果表明，该硅条探测器的每个探测单元对5～9 MeV能量的α粒子的能量分辨率在1%左右。
Silicon micro-strip detectors have been widely used in the world-famous nuclear physics labora-tories due to their better position resolution and energy resolution. Double-sided silicon micro-strip detectors with a position resolution of 0.5 mm×0.5 mm, have been fabricated in the IMP(Institute of Modern Physics, CAS) by using microelectronics technology. These detectors have been used in the ETF (External Target Fa-cility) of HIRFL-CSR, as?E detectors of the?E-E telescope system and the track detectors. With the help of flexibility printed circuit board (FPCB) and the integrated ASIC chips, a compact multi-channel front-end electronic board has been designed to fulfill the acquisition of the energy and position information of the Silicon micro-strip detectors. It is described in this paper that the build-up of the Silicon micro-strip detector array in ETF of HIRFL-CSR, the determination of the energy resolution of the detector units, and the energy resolution of approximately 1%obtained for 5～9 MeVαparticles in vacuum.
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