Experimental study of cross-section ratios in the collisions of Cq+ and Oq+(q=1–4) on atomic helium in strong-interaction region

doi:10.1088/1674-1056/20/1/013402

中国物理B ›› 2011, Vol. 20 ›› Issue (1): 13402-013402.doi: 10.1088/1674-1056/20/1/013402

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Experimental study of cross-section ratios in the collisions of C^q+ and O^q+(q=1–4) on atomic helium in strong-interaction region

陈熙萌, 江丽娟, 周鹏, 周春林, 高志民, 邱玺玉, 崔莹, 王兴安, 娄凤君, 吕学阳, 贾娟娟, 陈林, 邵剑雄, 吕瑛, 王幡

School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

收稿日期:2009-04-23 修回日期:2009-12-25 出版日期:2011-01-15 发布日期:2011-01-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 10775063).

Experimental study of cross-section ratios in the collisions of C^q+ and O^q+(q=1–4) on atomic helium in strong-interaction region

Chen Xi-Meng(陈熙萌)^†, Jiang Li-Juan(江丽娟), Zhou Peng(周鹏), Zhou Chun-Lin(周春林), Gao Zhi-Min(高志民), Qiu Xi-Yu(邱玺玉), Cui Ying(崔莹), Wang Xing-An(王兴安), Lou Feng-Jun(娄凤君), Lü Xue-Yang(吕学阳), Jia Juan-Juan(贾娟娟), Chen Lin(陈林), Shao Jian-Xiong(邵剑雄), Lü Ying(吕瑛), and Wang Fan(王幡)

School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

Received:2009-04-23 Revised:2009-12-25 Online:2011-01-15 Published:2011-01-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 10775063).

摘要/Abstract

摘要： We have measured the cross-section ratios of helium induced by C^q+ and O^q+ (q=1-4) in an energy range from 20 keV/amu to 500 keV/amu, and obtained the two-dimensional spectra by employing the coincidence method combined with the MPA-3 data acquisition system. Hence, we obtain the ratios of total single-ionization cross-sections (SI, SC, SLSI, and DLSI), total double-ionization cross-sections (DI, DC, TI, SLDI, and DLDI) and cross-sections of every process (SI, SC, SLSI, DLSI, DI, DC, TI, SLDI, and DLDI), which induce the single-ionization and double-ionization, to the total cross sections respectively. The competitive relations between the reaction-channels and the experimental data law of each reaction-channel are revealed explicitly, and the qualitative explanations involved in those results are also presented accordingly.

Abstract: We have measured the cross-section ratios of helium induced by C^q+ and O^q+ (q=1–4) in an energy range from 20 keV/amu to 500 keV/amu, and obtained the two-dimensional spectra by employing the coincidence method combined with the MPA-3 data acquisition system. Hence, we obtain the ratios of total single-ionization cross-sections (SI, SC, SLSI, and DLSI), total double-ionization cross-sections (DI, DC, TI, SLDI, and DLDI) and cross-sections of every process (SI, SC, SLSI, DLSI, DI, DC, TI, SLDI, and DLDI), which induce the single-ionization and double-ionization, to the total cross sections respectively. The competitive relations between the reaction-channels and the experimental data law of each reaction-channel are revealed explicitly, and the qualitative explanations involved in those results are also presented accordingly.

Key words: ion–atom collisions, strong-interaction region, cross-section ratios, competitive relation

中图分类号: (Electronic excitation and ionization of atoms (including beam-foil excitation and ionization))

34.50.Fa

34.80.Dp (Atomic excitation and ionization)

陈熙萌, 江丽娟, 周鹏, 周春林, 高志民, 邱玺玉, 崔莹, 王兴安, 娄凤君, 吕学阳, 贾娟娟, 陈林, 邵剑雄, 吕瑛, 王幡. Experimental study of cross-section ratios in the collisions of C^q+ and O^q+(q=1–4) on atomic helium in strong-interaction region[J]. 中国物理B, 2011, 20(1): 13402-013402.

Chen Xi-Meng(陈熙萌), Jiang Li-Juan(江丽娟), Zhou Peng(周鹏), Zhou Chun-Lin(周春林), Gao Zhi-Min(高志民), Qiu Xi-Yu(邱玺玉), Cui Ying(崔莹), Wang Xing-An(王兴安), Lou Feng-Jun(娄凤君), Lü Xue-Yang(吕学阳), Jia Juan-Juan(贾娟娟), Chen Lin(陈林), Shao Jian-Xiong(邵剑雄), Lü Ying(吕瑛), and Wang Fan(王幡) . Experimental study of cross-section ratios in the collisions of C^q+ and O^q+(q=1–4) on atomic helium in strong-interaction region[J]. Chin. Phys. B, 2011, 20(1): 13402-013402.

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Experimental study of cross-section ratios in the collisions of C^q+ and O^q+(q=1–4) on atomic helium in strong-interaction region

Experimental study of cross-section ratios in the collisions of C^q+ and O^q+(q=1–4) on atomic helium in strong-interaction region

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