A 10 mA, steady-state, charge exchange negative ion beam source

I. Shikhovtsev, V. Amirov, K. Anikeeva, V. Davydenko, I. Emelev, A. Ivanov, V. Mishagin, V. Rashchenko, I. Maslakov, E. Shubin

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

A negative ion source, which utilizes a conversion of primary high current proton beam into negative ions in a gas target via charge-exchange collisions, is under development in Budker Institute, Novosibirsk. The proposed beam will be used for injection into a tandem accelerator, which is a part of the neutron source dedicated for boron-neutron capture therapy (BNCT). The ion source is designed to produce a beam that contains ≥50% of molecular ions. The initial ion beam current is about 1 A at 30 keV energy. After molecular ion dissociation in a gas target, which produces protons with an energy of 15 keV, and further charge-exchange collisions, the beam after the target will contain about 2% of negative ion species with a current in excess of 10?mA. The negative ion beam is then separated by the magnetic field, accelerated up to an energy of 105 keV and enters the tandem accelerator. This paper presents the results of simulations of the beam formation, acceleration and transport. The arrangement of the ion source and corresponding high voltage power supply are also discussed.

Original languageEnglish
Title of host publication7th International Symposium on Negative Ions, Beams and Sources, NIBS 2020
EditorsYuri Belchenko, Dan Faircloth, Scott Lawrie, Olli Tarvainen, Motoi Wada
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735441095
DOIs
Publication statusPublished - 30 Jul 2021
Event7th International Symposium on Negative Ions, Beams and Sources, NIBS 2020 - Oxford, United Kingdom
Duration: 1 Sep 202010 Sep 2020

Publication series

NameAIP Conference Proceedings
Volume2373
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference7th International Symposium on Negative Ions, Beams and Sources, NIBS 2020
CountryUnited Kingdom
CityOxford
Period01.09.202010.09.2020

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

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