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Electron impact single ionization cross sections of \(\hbox {W}^{\mathrm {{+}}}\)

  • Regular Article - Atomic and Molecular Collisions
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Abstract

Tungsten is suitable for wall material as well as divertor material in magnetic fusion devices due to its low sputtering and good thermal properties. The electron impact ionization process in the low charged states of W is important for modeling of the divertors. We present results of our calculation for the electron induced total ionization cross sections of \(\hbox {W}^{\mathrm {+}}\). The direct ionization cross sections have been calculated in variants of the binary encounter Bethe methods as well as variants of the distorted wave approximation. The individual cross sections for the direct ionization of some outer subshells of \(\hbox {W}^{\mathrm {+}}\) are also reported, and it is observed that the major contribution to the total cross section comes from the 5d, 6s and 4f subshells. Present cross section results have been compared with the available measurements and theoretical results.

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Data Availability Statement

This manuscript has no associated data, or the data will not be deposited. [Authors’ comment: The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.]

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Acknowledgements

GP acknowledges grant received from Science and Engineering Research Board (SERB), New Delhi in the form of SERB CRG project (File No. CRG/2019/001059). Part of this work was performed during GP’s JSPS Invitational Fellowship stay in National Institute for Fusion Science (NIFS), Toki, Japan. GP acknowledges NIFS for providing hospitality. GP acknowledges JSPS Long Term Fellowship AY 2017 (L17538) provided by Japan Society for Promotion of Science. DK is grateful for the support by Grant-in-Aid for Scientific Research from JSPS (18H01201). KCD acknowledges Junior Rsearch Fellowship from UGC, New Delhi, India. SG acknowledges the financial assistance received under INSPIRE fellowship grant, Department of Science and Technology,Government of India.

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Authors and Affiliations

  1. Department of Physics, University College of Science, Mohan Lal Sukhadia University, Udaipur, 313001, India

    G. Purohit & K. C. Dhakar

  2. National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki Gifu, 509-5292, Japan

    D. Kato & I. Murakami

  3. Department of Fusion Science, SOKENDAI, 322-6 Oroshi-cho, Toki, Gifu, 509-5292, Japan

    I. Murakami

  4. Interdisciplinary Graduate School of Engineering nd Sciences, Kuyushu University, Kasuga, Fukuoka, 816-8580, Japan

    D. Kato

  5. Department of Physics, H. N. B. Garhwal University, B.G.R. Campus, Pauri, Uttarakhand, India

    S. Gupta & P. Sinha

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  1. G. Purohit
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  2. D. Kato
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All the authors contributed equally in the calculations and analysis of the results.

Corresponding author

Correspondence to G. Purohit.

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Purohit, G., Kato, D., Murakami, I. et al. Electron impact single ionization cross sections of \(\hbox {W}^{\mathrm {{+}}}\). Eur. Phys. J. D 75, 219 (2021). https://doi.org/10.1140/epjd/s10053-021-00204-6

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