Experimental data on low energy electron impact ionisation of W

T. Schlummer, S. Ertmer, S. Brezinsek, A. Eksaeva, A. Pospieszczyk, D. Borodin, A. Kirschner, A. Kreter, Ch Linsmeier, G. Sergienko, B. Unterberg

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

We present experimental data on the rate coefficient for electron impact ionisation of W atoms at electron temperatures between 5 and 10 eV. Our results undercut different theoretical data sets based on the Born approximation and the distorted wave approximation, respectively, by more than a factor of 3. Better agreement in absolute values is found with a more recent work by Goswami et al. The present data match well with earlier measurements by Steinbrink obtained with a different method.

Original languageEnglish
Article number014075
JournalPhysica Scripta
Volume2017
Issue numberT170
DOIs
StatePublished - 1 Dec 2017
Externally publishedYes
Event16th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2017 - Neuss/Dusseldorf, Germany
Duration: 16 May 201719 May 2017

Bibliographical note

Publisher Copyright:
© 2017 Forschungszentrum Jülich.

Keywords

  • Cross section
  • Ionisation
  • Spectroscopy
  • Tunsgten
  • W

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