| 两维位置灵敏探测器的能量和动量响应函数刻度 |
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| 引用本文： | 单旭,陈向军,吴兴举,陈丽清,刘涛,徐克尊.两维位置灵敏探测器的能量和动量响应函数刻度[J].原子与分子物理学报,2004,21(4):559-561. |
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| 作者姓名： | 单旭 陈向军 吴兴举 陈丽清 刘涛 徐克尊 |
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| 作者单位： | 合肥微尺度物质科学国家实验室(筹),中国科学技术大学近代物理系,安徽,合肥,230026 |
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| 基金项目： | 国家自然科学基金委重点项目资助课题(批准号:10134010) |
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| 摘 要： | 用弹性散射对多通道(e,2e)谱仪两维位置灵敏探测器的能量和动量响应函数进行了刻度,从位置灵敏探测器输出的两维位置信息中获得了弹性散射的能谱和角度谱,估计了在当前实验条件下的能量分辨和角度分辨.同时,我们用正交多项式的最小二乘法拟合得到了谱仪单路的能量和动量响应函数.
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| 关 键 词： | 两维位置灵敏探测器 弹性散射能谱和角度谱 正交多项式的最小二乘法拟合 |
| 文章编号： | 1000-0364(2004)04-0559-03 |
| 收稿时间： | 1/1/2004 12:00:00 AM |
The calibration on the energy and momentum response functions of multi-channel (e,2e) spectrometer |
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| SHAN Xu,CHEN Xiang-jun,WU Xing-ju,CHEN Li-qing,LIU Tao,XU Ke-zun.The calibration on the energy and momentum response functions of multi-channel (e,2e) spectrometer[J].Journal of Atomic and Molecular Physics,2004,21(4):559-561. |
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| Authors: | SHAN Xu CHEN Xiang-jun WU Xing-ju CHEN Li-qing LIU Tao XU Ke-zun |
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| Abstract: | The energy and momentum response functions of two-dimensional Position-Sensitive detector (PDS) of multi-channel (e,2e) spectrometer have been calibrated using elastically scattered electron at seven different incident energy and eight different azimuthal angles. The energy and azimuthal angular spectra for elastic scattering are extracted from the two-dimensional position information of the PSD output. The energy and angular resolutions are evaluated. Meanwhile, the response functions are obtained by the least-square fitting of orthogonal polynomials. |
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| Keywords: | Two-dimensional position-sensitive detector (PSD) Energy and angular spectra The least-square fitting of orthogonal polynomials |
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