| 基于AMS-01实验估算羊八井处原初宇宙线的流强和能谱 |
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| 引用本文： | 祝凤荣,冉政,徐立军,高林超,梁含笑,史亚利,贾焕玉.基于AMS-01实验估算羊八井处原初宇宙线的流强和能谱[J].空间科学学报,2013,33(6):604-607. |
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| 作者姓名： | 祝凤荣 冉政 徐立军 高林超 梁含笑 史亚利 贾焕玉 |
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| 作者单位： | 西南交通大学物理科学与技术学院 成都 610031 |
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| 基金项目： | 国家自然科学基金项目(11205126)和中央高校基本科研业务费专项资金项目(SWJTU11BR086)共同资助 |
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| 摘 要： | 利用Alpha Magnetic Spectrometer(AMS)实验对近地空间不同地磁纬度处不同能量原初宇宙线微分能谱的观测,通过积分近似计算和拟合方法,研究得出西藏羊八井地磁纬度处原初宇宙线质子动能在0.44～4.31GeV,4.31～12.38GeV,12.38～199.06GeV区间内的积分流强与拟合能谱函数以及原初宇宙线氦核在刚度区间6.92～14.45GV,14.45～229.9GV的积分流强与拟合能谱函数,为近一步进行羊八井处本底宇宙线流强估算奠定了基础.
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| 关 键 词： | AMS-01实验 原初宇宙线 流强 能谱 |
| 收稿时间： | 2013-05-10 |
Flux and Spectra of Primary Cosmic Rays at Yangbajing With the AMS-01 Experiment |
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| Institution: | School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031 |
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| Abstract: | Based on AMS-01 experiment, the integral fluxes and the energy spectra are investigated for the estimation of background cosmic ray radiation. Using the data from AMS-01 experiment in the Sun quiet phase of June 1998, the integral fluxes of primary protons for the kinetic energy ranges of 0.44～4.31GeV, 4.31～12.38GeV, 12.38～199.06GeV near the Earth at geomagnetic latitude of Yangbajing are achieved respectively. And the integral fluxes of primary for the kinetic energy ranges of 6.92～14.45GV and 14.45～229.9GV are also obtained. Correspondingly, the energy spectra functions for the protons and helium are then fitted for this 5 energy ranges, separately. The integral fluxes for the same energy range above is consistent by the two methods of approximate calculation of integral and the integral of function curves. |
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