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Kr L X-ray and Au M X-ray emission for 1.5 MeV–3.9 MeV Kr^(13+) ions impacting on an Au target

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Chinese Physics B 2013年第10期22卷 257-261页

作者：梅策香张小安赵永涛周贤明任洁茹王兴雷瑜孙渊博程锐王瑜玉梁昌慧李耀宗肖国青 Department of Applied Physics Xi'an Jiaotong University Ion Beam & Optical Physical Joint Laboratory of Xianyang Normal University and Institute of Modern Physics Chinese Academy of Sciences Institute of Modern Physics Chinese Academy of Sciences

Kr L X-ray and Au M X-ray emission for Kr13＋ ions with energies of 1.5 MeV and 3.9 MeV impacting on an Au target are investigated at heavy ion research facility in Lanzhou （HIRFL）. The L-shell X-ray yield per ion of Kr is measured as a function of incident energy. In addition, Kr L X-ray production cross section is extracted from the yield and compared with the result obtained from the classical binary-encounter approximation （BEA） model. Furthermore, the intensity ratio of the Au M/33 to Ma1 X-ray is investigated as a function of incident energy.

关键词： X-ray yield per ion X-ray production cross section intensity ratio

^(129)Xe^(20+)入射Au表面X射线产额与离子动能的相关性

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原子与分子物理学报 2011年第5期28卷 795-801页

作者：李耀宗张小安梁昌慧赵永涛程锐周贤明王兴雷瑜孙渊博徐戈李锦玉肖国青咸阳师范学院与中国科学院近代物理研究所联合共建:离子束与光物理实验室咸阳712000 中国科学院近代物理研究所兰州730000

报道了在兰州重离子加速器国家实验室320kV高电荷态离子综合研究平台上,用2.4～6.0MeV动能的高电荷态离子^(129)Xe^(20+)轰击Au表面,探测X射线谱的实验结果.当离子动能较大时,相互作用不仅激发出了Au的M—X射线,还激发出了Xe的L—X射线,... 详细信息

报道了在兰州重离子加速器国家实验室320kV高电荷态离子综合研究平台上,用2.4～6.0MeV动能的高电荷态离子^(129)Xe^(20+)轰击Au表面,探测X射线谱的实验结果.当离子动能较大时,相互作用不仅激发出了Au的M—X射线,还激发出了Xe的L—X射线,且X射线产额随入射离子动能的增加总体呈增加趋势.对碰撞导致X射线产生的微观机制进行了初步分析.

关键词：高电荷态离子 X射线离子动能单离子X射线产额

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基于“做中学”理念的模拟电子技术教学探讨

陕西教育（高教版） 2013年第10期 72-72页

作者：梁昌慧咸阳师范学院物理与电子工程学院

针对模拟电子技术课程的特点,实施了"做中学"的教学理念,实施效果表明,此理念可充分调动学生的学习主动性,提高教学质量。

关键词：做中学模拟电子技术负反馈

维普期刊数据库博看期刊

Nd L-shell x-ray emission induced by light ions

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Chinese Physics B 2022年第6期31卷 310-315页

作者：周贤明尉静程锐陈燕红梅策香曾利霞柳钰张艳宁梁昌慧赵永涛张小安 Ion Beam and Optical Physics Joint Laboratory of Xianyang Normal University and Insitite of Modern Physics Chinese Academy of SciencesXianyang Normal UniversityXianyang 712000China School of Science Xi’an Jiaotong UniversityXi’an 710049China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China

The L-shell x-ray of Nd has been obtained for 300-600 keV He2+ions impacting,and compared with that produced by H+and H2+*** threshold of projectile kinetic energy for L-shell ionization of Nd is crudely verified in the energy region of about 300-400 *** is found that the energy of the distinct L-subshell x-rays has a blue *** relative intensity ratios of Lβ_(1,3,4)and Lβ_(2,15)to Lα_(1,2)x-ray are enlarged compared to the atomic data,and they decrease with the increase of the incident energy,and increase with increasing the effective nuclear charge of the incident *** is interpreted by the multiple ionization of outer-shells induced by light ions.

关键词： light ions ion-atom collision L-shell x-ray multiple ionization

X-ray emission for Ar^(11+)ions impacting on various targets in the collisions near the Bohr velocity

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Chinese Physics B 2021年第8期30卷 312-316页

作者：周贤明尉静程锐陈燕红梅策香曾利霞梁昌慧李耀宗赵永涛张小安 Ion Beam and Optical Physics Joint Laboratory of Xianyang Normal University and Institute of Modern Physics of CAS Xianyang Normal UniversityXianyang 712000China School of Science Xi'an Jiaotong UniversityXi'an 710049China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China

X-ray emission from the collisions of 3 MeV Ar^(11+)ions with V,Fe,Co,Ni,Cu,and Zn is *** the x-rays of the target atom and projectile are observed *** x-ray yield is extracted from the original *** inner-shell ionization cross section is estimated by the binary encounter approximation model and compared with the experimental *** remarkable result is that the Ar K-shell x-ray yield is diminished with the target atomic number increasing,which is completely opposite to the theoretical *** is interpreted by the competitive consumption of the energy loss for the ionization of inner-shell electrons between the projectile and target atom.

关键词： ion-atom collision near Bohr velocity x-ray coulomb ionization