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, Akiyoshi Hatayama, Y. Okumura

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

3 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 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

Fingerprint

hydrogen ions
beam currents
negative ions
ion sources
cyclotrons
arcs
feedback control
decay rates
direct current
injection
protons

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Etoh, H., Onai, M., Arakawa, Y., Aoki, Y., Mitsubori, H., Sakuraba, J., ... Okumura, Y. (2017). Development of a 20 mA negative hydrogen ion source for cyclotrons. In 5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016 (Vol. 1869). [030050] 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.; Aoki, Y.; Mitsubori, H.; Sakuraba, J.; Kato, T.; Mitsumoto, T.; Yajima, S.; Hatayama, Akiyoshi; Okumura, Y.

5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016. Vol. 1869 American Institute of Physics Inc., 2017. 030050.

Research output: Chapter in Book/Report/Conference proceedingConference 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 5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016. vol. 1869, 030050, 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
Etoh H, Onai M, Arakawa Y, Aoki Y, Mitsubori H, Sakuraba J et al. Development of a 20 mA negative hydrogen ion source for cyclotrons. In 5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016. Vol. 1869. American Institute of Physics Inc. 2017. 030050 https://doi.org/10.1063/1.4995770
Etoh, H. ; Onai, M. ; Arakawa, Y. ; Aoki, Y. ; Mitsubori, H. ; Sakuraba, J. ; Kato, T. ; Mitsumoto, T. ; Yajima, S. ; Hatayama, Akiyoshi ; Okumura, Y. / Development of a 20 mA negative hydrogen ion source for cyclotrons. 5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016. Vol. 1869 American Institute of Physics Inc., 2017.
@inproceedings{b3b7193e5dea42e88c30b90938ada55d,
title = "Development of a 20 mA negative hydrogen ion source for cyclotrons",
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{\%}).",
author = "H. Etoh and M. Onai and Y. Arakawa and Y. Aoki and H. Mitsubori and J. Sakuraba and T. Kato and T. Mitsumoto and S. Yajima and Akiyoshi Hatayama and Y. Okumura",
year = "2017",
month = "8",
day = "9",
doi = "10.1063/1.4995770",
language = "English",
volume = "1869",
booktitle = "5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016",
publisher = "American Institute of Physics Inc.",

}

TY - GEN

T1 - Development of a 20 mA negative hydrogen ion source for cyclotrons

AU - Etoh, H.

AU - Onai, M.

AU - Arakawa, Y.

AU - Aoki, Y.

AU - Mitsubori, H.

AU - Sakuraba, J.

AU - Kato, T.

AU - Mitsumoto, T.

AU - Yajima, S.

AU - Hatayama, Akiyoshi

AU - Okumura, Y.

PY - 2017/8/9

Y1 - 2017/8/9

N2 - 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%).

AB - 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%).

UR - http://www.scopus.com/inward/record.url?scp=85030116280&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85030116280&partnerID=8YFLogxK

U2 - 10.1063/1.4995770

DO - 10.1063/1.4995770

M3 - Conference contribution

AN - SCOPUS:85030116280

VL - 1869

BT - 5th International Symposium on Negative Ions, Beams and Sources, NIBS 2016

PB - American Institute of Physics Inc.

ER -