中国物理B ›› 2024, Vol. 33 ›› Issue (4): 43401-043401.doi: 10.1088/1674-1056/ad20dd

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Absolute partial and total ionization cross sections of carbon monoxide with electron collision from 350 eV to 8000 eV

Taj Wali Khan, Weizhe Huang(黄伟哲), Enliang Wang(王恩亮), Xu Shan(单旭), and Xiangjun Chen(陈向军)   

  1. Hefei National Research Center of Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2023-12-25 修回日期:2024-01-12 接受日期:2024-01-22 出版日期:2024-03-19 发布日期:2024-03-27
  • 通讯作者: Xu Shan E-mail:xshan@ustc.edu.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant No. 2022YFA1602502), the National Natural Science Foundation of China (Grant No. 12127804), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant Nos. XDB34000000).

Absolute partial and total ionization cross sections of carbon monoxide with electron collision from 350 eV to 8000 eV

Taj Wali Khan, Weizhe Huang(黄伟哲), Enliang Wang(王恩亮), Xu Shan(单旭), and Xiangjun Chen(陈向军)   

  1. Hefei National Research Center of Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
  • Received:2023-12-25 Revised:2024-01-12 Accepted:2024-01-22 Online:2024-03-19 Published:2024-03-27
  • Contact: Xu Shan E-mail:xshan@ustc.edu.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant No. 2022YFA1602502), the National Natural Science Foundation of China (Grant No. 12127804), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant Nos. XDB34000000).

摘要: The absolute partial and total cross sections for electron impact ionization of carbon monoxide are reported for electron energies from 350 eV to 8000 eV. The product ions (CO+, C+, O+, CO2+, C2+, and O2+) are measured by employing an ion imaging mass spectrometer and two ion-pair dissociation channels (C+ + O+ and C2+ + O+) are identified. The absolute cross sections for producing individual ions and their total, as well as for the ion-pair dissociation channels are obtained by normalizing the data of CO+ to that of Ar+ from CO—Ar mixture target with a fixed 1:1 ratio. The overall errors are evaluated by considering various kinds of uncertainties. A comprehensive comparison is made with the available data, which shows a good agreement with each other over the energy ranges that are overlapped. This work presents new cross-section data with electron energies above 1000 eV.

关键词: electron impact, ionization cross sections, carbon monoxide, ion imaging mass spectrometer

Abstract: The absolute partial and total cross sections for electron impact ionization of carbon monoxide are reported for electron energies from 350 eV to 8000 eV. The product ions (CO+, C+, O+, CO2+, C2+, and O2+) are measured by employing an ion imaging mass spectrometer and two ion-pair dissociation channels (C+ + O+ and C2+ + O+) are identified. The absolute cross sections for producing individual ions and their total, as well as for the ion-pair dissociation channels are obtained by normalizing the data of CO+ to that of Ar+ from CO—Ar mixture target with a fixed 1:1 ratio. The overall errors are evaluated by considering various kinds of uncertainties. A comprehensive comparison is made with the available data, which shows a good agreement with each other over the energy ranges that are overlapped. This work presents new cross-section data with electron energies above 1000 eV.

Key words: electron impact, ionization cross sections, carbon monoxide, ion imaging mass spectrometer

中图分类号:  (Electronic excitation and ionization of molecules)

  • 34.50.Gb
34.80.Gs (Molecular excitation and ionization) 34.80.Ht (Dissociation and dissociative attachment)