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Energy Loss and Stopping Power of ^(4)He Ions in mylar Foils

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Chinese Physics Letters 1994年第4期11卷 200-202页

作者： JIN Changwen LU Xiting HUANG xiaojing YE Yanlin xia zonghuang LIU Hongtao JIANG Dongxing Department of Technical Physics Peking UniversityBeijing 100871

The energy loss and stopping power of ^(4)He ions in mylar foils were determined in a transmission *** experimental stopping power data were compared to the previous measurements at higher *** lower energies,no previous measurements *** present results were also compared to the commonly used semiempirically theoretical predictions by Ziegler and Manoyan,and significant deviations were observed.

关键词： geometry Stopping semiempirical

Stopping Power of Compounds for ^(16)O and ^(19)F Ions

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Chinese Physics Letters 1994年第9期11卷 537-540页

作者： WU Zeqing LU Xiting JIN Changwen ZHENG Tao xia zonghuang LIU Hongtao JIANG Dongxing YE Yanlin Department of Technical Physics Peking UniversityBeijing 100871

The stopping powers of CaF_(2) and MoO_(3) for ^(16)O and ^(19)F were measured with heavy-substrate Rutherford backscattering *** present results are compared with the prediction of Bragg's rule,and strong deviation w... 详细信息

关键词： technique deviation

Measurements of the 2P_(3/2) Vacancy State Alignment of Au Induced by Proton, Lithium and Boron Ion Impact

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Chinese Physics Letters 1993年第3期10卷 135-138页

作者： xia zonghuang MA Hongji ZHUANG Yongzhong XIE xiaohong LIU Hongtao LU Xiting Department of Technical Physics Peking UniversityBeijing 100871

In this paper,the degree of alignment of 2P_(3/2) vacancy state in Au induced by proton,lithium and boron ion impact was measured using a Si(Li)*** the projectile-energy dependence of the degree of alignment was investigated over the projectile energy range from 0.2 MeV/amu to 2.0MeV/*** de-alignment phenomenon was observed for small relative impact velocities.

关键词： alignment boron lithium

Stopping Powers of Bromine and Carbon in Silver

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Chinese Physics Letters 1991年第12期8卷 615-617页

作者： JIN Chamgwen LU Xiting xia zonghuang LIU Hongtao JIANG Dongxing YE Yanlin Department of Technical Physics Peking UniversityBeijing 100871

The stopping powers of Br and C in Ag Elm have been measured with the method of elastic recoil detection in energy range 0.28-0.42MeV/*** results have been compared with the theoretical calculations of TRIM-90.

关键词： powers Stopping calculations

Ni ION INDUCED X-RAY EMISSION

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Chinese Physics Letters 1989年第6期6卷 257-260页

作者： xia zonghuang LU Xiting YAO Shude WANG Demin LIU Jiarui ZHU Peiran Department of Technical Physics Peking UniversiytBeijing Institute of Physics Academia Sinica Beijing

The thick targets of Ti,Fet Ni and Zn have been bombarded with 3 to 7Me V nickel *** X-ray spectra of the projectiles and targets showed a significant difference in the intensity of the X-ray radiation for several *** explanation of this phenomenon by quasimolecular orbital energy level correlation diagrams and the possible application of Ni ion induced X-ray emission were discussed.

关键词： nickel explanation thick

Stopping Power of Au and Ag for He Ions

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Chinese Physics Letters 1993年第4期10卷 205-208页

作者： HUANG xiaojing LU Xiting JIN Changwen ZHOU Chengfang YE Yanlin xia zonghuang LIU Hongtao JIANG Dongxing Department of Technical Physics Peking UniversityBeijing 100871

Energy loss of 0.45-5.0 MeV 4He ions in Au and Ag films were measured with the Rutherford backscattering method,and the stopping powers at lower energy range were extracted by comparing with that determined by Anderson et *** higher energy *** deviation between the experimental data and the semiempirical calculations by TRIM-90 appears around the stopping *** accuracy of our results was expected to be±l%.

关键词： deviation powers backscattering

质子辐照后的KNbO_3晶体的光折变响应特性

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北京大学学报（自然科学版） 1999年第5期35卷 655-658页

作者：李旗夏宗璜王雪梅赵强沈定予卢希庭王锋陈志坚龚旗煌沈德忠北京大学技术物理学系北京100871 北京大学物理学系介观物理国家开放实验室北京100871 国家建材局人工晶体研究所北京100018

实验研究了质子辐照的ＫＮｂＯ３晶体随光强变化的光折变响应特性，并测量了其光折变时间常数。实验结果揭示出在质子辐照后的ＫＮｂＯ３晶体中存在着２种不同的光栅，其一是慢成分，是由晶体本身的光折变效应所产生；另一个... 详细信息

实验研究了质子辐照的ＫＮｂＯ３晶体随光强变化的光折变响应特性，并测量了其光折变时间常数。实验结果揭示出在质子辐照后的ＫＮｂＯ３晶体中存在着２种不同的光栅，其一是慢成分，是由晶体本身的光折变效应所产生；另一个则是快成分，是由于质子辐照后所产生的辐照效应。实验结果还反映出这２种光栅是由２种不同种类的载流子产生的。

关键词：光折变效应响应时间质子辐照铌酸钾晶体