Study of H- production in DC H- source of medical cyclotron

Haruhiko Etoh; Moriaki Onai; Yasushi Aoki; Hitoshi Mitsubori; Yoshihiko Arakawa; Junji Sakuraba; Takanori Kato; Toshinori Mitsumoto; Satoru Yajima; Takanori Shibata; Akiyoshi Hatayama; Yoshikazu Okumura

doi:10.1585/pfr.11.2406063

Study of H^- production in DC H^- source of medical cyclotron

Haruhiko Etoh, Moriaki Onai, Yasushi Aoki, Hitoshi Mitsubori, Yoshihiko Arakawa, Junji Sakuraba, Takanori Kato, Toshinori Mitsumoto, Satoru Yajima, Takanori Shibata, Akiyoshi Hatayama, Yoshikazu Okumura

Department of Applied Physics and Physico-Informatics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

A filament driven multi-cusp negative hydrogen ion source has been developed for proton cyclotrons. In order to increase the H^- beam current, the dependences of H^- beam current on various design/operating parameters has been studied experimentally and numerically. In this paper, the effects of arc-discharge voltage and current on H^- production via the volume production process are investigated by three-dimensional kinetic modeling of electrons in the source plasma and zero-dimensional rate equations. This numerical analysis reproduces the experimental results of H^- beam current dependence on the arc-discharge condition, and also gives reasonable explanations for their characteristics.

Original language	English
Article number	2406063
Journal	Plasma and Fusion Research
Volume	11
Issue number	1
DOIs	https://doi.org/10.1585/pfr.11.2406063
Publication status	Published - 2016

Keywords

EEDF
KEIO-MARC code
Medical cyclotron
Negative hydrogen ion source

ASJC Scopus subject areas

Condensed Matter Physics

Access to Document

10.1585/pfr.11.2406063

Cite this

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title = "Study of H- production in DC H- source of medical cyclotron",

abstract = "A filament driven multi-cusp negative hydrogen ion source has been developed for proton cyclotrons. In order to increase the H- beam current, the dependences of H- beam current on various design/operating parameters has been studied experimentally and numerically. In this paper, the effects of arc-discharge voltage and current on H- production via the volume production process are investigated by three-dimensional kinetic modeling of electrons in the source plasma and zero-dimensional rate equations. This numerical analysis reproduces the experimental results of H- beam current dependence on the arc-discharge condition, and also gives reasonable explanations for their characteristics.",

keywords = "EEDF, KEIO-MARC code, Medical cyclotron, Negative hydrogen ion source",

author = "Haruhiko Etoh and Moriaki Onai and Yasushi Aoki and Hitoshi Mitsubori and Yoshihiko Arakawa and Junji Sakuraba and Takanori Kato and Toshinori Mitsumoto and Satoru Yajima and Takanori Shibata and Akiyoshi Hatayama and Yoshikazu Okumura",

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year = "2016",

doi = "10.1585/pfr.11.2406063",

language = "English",

volume = "11",

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publisher = "The Japan Society of Plasma Science and Nuclear Fusion Research (JSPF)",

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T1 - Study of H- production in DC H- source of medical cyclotron

AU - Etoh, Haruhiko

AU - Onai, Moriaki

AU - Aoki, Yasushi

AU - Mitsubori, Hitoshi

AU - Arakawa, Yoshihiko

AU - Sakuraba, Junji

AU - Kato, Takanori

AU - Mitsumoto, Toshinori

AU - Yajima, Satoru

AU - Shibata, Takanori

AU - Hatayama, Akiyoshi

AU - Okumura, Yoshikazu

PY - 2016

Y1 - 2016

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AB - A filament driven multi-cusp negative hydrogen ion source has been developed for proton cyclotrons. In order to increase the H- beam current, the dependences of H- beam current on various design/operating parameters has been studied experimentally and numerically. In this paper, the effects of arc-discharge voltage and current on H- production via the volume production process are investigated by three-dimensional kinetic modeling of electrons in the source plasma and zero-dimensional rate equations. This numerical analysis reproduces the experimental results of H- beam current dependence on the arc-discharge condition, and also gives reasonable explanations for their characteristics.

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KW - KEIO-MARC code

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KW - Negative hydrogen ion source

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