Development of a 20 mA negative hydrogen ion source for cyclotrons

H. Etoh; M. Onai; Y. Arakawa; Y. Aoki; H. Mitsubori; J. Sakuraba; T. Kato; T. Mitsumoto; S. Yajima; A. Hatayama; Y. Okumura

doi:10.1063/1.4995770

Development of a 20 mA negative hydrogen ion source for cyclotrons

H. Etoh, M. Onai, Y. Arakawa, Y. Aoki, H. Mitsubori, J. Sakuraba, T. Kato, T. Mitsumoto, S. Yajima, A. Hatayama, Y. Okumura

Department of Applied Physics and Physico-Informatics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Citations (Scopus)

Abstract

A cesiated DC negative ion source has been developed for proton cyclotrons in medical applications. A continuous H- beam of 23 mA was stably extracted at an arc power of 3 kW. The beam current gradually decreases with a constant arc power and without additional Cs injection and the decay rate was about 0.03 mA (0.14%) per hour. A feedback control system that automatically adjusts the arc power to stabilize the beam current is able to keep the beam current constant at ±0.04 mA (±0.2%).

Original language	English
Title of host publication	5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016
Editors	Dan Faircloth
Publisher	American Institute of Physics Inc.
ISBN (Electronic)	9780735415492
DOIs	https://doi.org/10.1063/1.4995770
Publication status	Published - 2017 Aug 9
Event	5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016 - Oxford, United Kingdom Duration: 2016 Sept 12 → 2016 Sept 16

Publication series

Name	AIP Conference Proceedings
Volume	1869
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016
Country/Territory	United Kingdom
City	Oxford
Period	16/9/12 → 16/9/16

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.4995770

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Etoh, H., Onai, M., Arakawa, Y., Aoki, Y., Mitsubori, H., Sakuraba, J., Kato, T., Mitsumoto, T., Yajima, S., Hatayama, A., & Okumura, Y. (2017). Development of a 20 mA negative hydrogen ion source for cyclotrons. In D. Faircloth (Ed.), 5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016 [030050] (AIP Conference Proceedings; Vol. 1869). American Institute of Physics Inc.. https://doi.org/10.1063/1.4995770

Development of a 20 mA negative hydrogen ion source for cyclotrons. / Etoh, H.; Onai, M.; Arakawa, Y. et al.
5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016. ed. / Dan Faircloth. American Institute of Physics Inc., 2017. 030050 (AIP Conference Proceedings; Vol. 1869).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Etoh, H, Onai, M, Arakawa, Y, Aoki, Y, Mitsubori, H, Sakuraba, J, Kato, T, Mitsumoto, T, Yajima, S, Hatayama, A & Okumura, Y 2017, Development of a 20 mA negative hydrogen ion source for cyclotrons. in D Faircloth (ed.), 5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016., 030050, AIP Conference Proceedings, vol. 1869, American Institute of Physics Inc., 5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016, Oxford, United Kingdom, 16/9/12. https://doi.org/10.1063/1.4995770

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Development of a 20 mA negative hydrogen ion source for cyclotrons

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