Code-to-Code benchmark tests for 3D simulation models dedicated to the extraction region in negative ion sources

S. Nishioka, S. Mochalskyy, F. Taccogna, Akiyoshi Hatayama, U. Fantz, P. Minelli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The development of the kinetic particle model for the extraction region in negative hydrogen ion sources is indispensable and helpful to clarify the H- beam extraction physics. Recently, various 3D kinetic particle codes have been developed to study the extraction mechanism. Direct comparison between each other has not yet been done. Therefore, we have carried out a code-to-code benchmark activity to validate our codes. In the present study, the progress in this benchmark activity is summarized. At present, the reasonable agreement with the result by each code have been obtained using realistic plasma parameters at least for the following items; (1) Potential profile in the case of the vacuum condition (2) Temporal evolution of extracted current densities and profiles of electric potential in the case of the plasma consisting of only electrons and positive ions.

Original languageEnglish
Title of host publication5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016
PublisherAmerican Institute of Physics Inc.
Volume1869
ISBN (Electronic)9780735415492
DOIs
Publication statusPublished - 2017 Aug 9
Event5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016 - Oxford, United Kingdom
Duration: 2016 Sep 122016 Sep 16

Other

Other5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016
CountryUnited Kingdom
CityOxford
Period16/9/1216/9/16

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Nishioka, S., Mochalskyy, S., Taccogna, F., Hatayama, A., Fantz, U., & Minelli, P. (2017). Code-to-Code benchmark tests for 3D simulation models dedicated to the extraction region in negative ion sources. In 5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016 (Vol. 1869). [050006] American Institute of Physics Inc.. https://doi.org/10.1063/1.4995787