Abstract
In order to improve the uniformity of the negative ion production, the KEIO-MARC code has been applied to the QST's JT60SA negative ion source in three different magnetic configurations (i) MC-PGMF (Multi-Cusp and PG Magnetic Filter), (ii) TNT-MF (TeNT Magnetic Filter) and (iii) MTNT-MF (Modified TeNT Magnetic Filter). From the results, we have confirmed that the electron rotation inside the negative ion source is an essential element in order to obtain a uniform production of the negative ions. By adding extra tent magnets on the longitudinal sides, the electron rotation has been enhanced, and a uniform production of negative ions has been realized.
| Original language | English |
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| Title of host publication | 5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016 |
| Publisher | American Institute of Physics Inc. |
| Volume | 1869 |
| ISBN (Electronic) | 9780735415492 |
| DOIs | |
| Publication status | Published - 2017 Aug 9 |
| Event | 5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016 - Oxford, United Kingdom Duration: 2016 Sep 12 → 2016 Sep 16 |
Other
| Other | 5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016 |
|---|---|
| Country | United Kingdom |
| City | Oxford |
| Period | 16/9/12 → 16/9/16 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Fujita, S., Yamamoto, T., Yoshida, M., Onai, M., Kojima, A., Hatayama, A., & Kashiwagi, M. (2017). Analysis of the spatial non-uniformity of negative ion production in surface-produced negative ion sources. In 5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016 (Vol. 1869). [030041] American Institute of Physics Inc.. https://doi.org/10.1063/1.4995761