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An improved method of energy calibration for position-sensitive silicon detectors
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作者 孙明道 黄天衡 +9 位作者 刘忠 丁兵 杨华彬 张志远 王建国 马龙 郁琳 王永生 甘再国 周小红 《Chinese Physics C》 SCIE CAS CSCD 2016年第4期93-97,共5页
Energy calibration of resistive charge division-based position-sensitive silicon detectors is achieved by parabolic fitting in the traditional method, where the systematic variations of vertex and curvature of the par... Energy calibration of resistive charge division-based position-sensitive silicon detectors is achieved by parabolic fitting in the traditional method, where the systematic variations of vertex and curvature of the parabola with energy must be considered. In this paper we extend the traditional method in order to correct the fitting function, simplify the procedure of calibration and improve the experimental data quality. Instead of a parabolic function as used in the traditional method, a new function describing the relation of position and energy is introduced.The energy resolution of the 8.088 Me V α decay of213 Rn is determined to be about 87 ke V(FWHM), which is better than the result of the traditional method, 104 ke V(FWHM). The improved method can be applied to the energy calibration of resistive charge division-based position-sensitive silicon detectors with various performances. 展开更多
关键词 calibration fitting simplify vertex curvature resistive correct parabolic describing implanted
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