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Demonstration of long-pulse acceleration of high power positive ion beam with JT-60 positive ion source in Japan–Korea joint experiment.

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Title: Demonstration of long-pulse acceleration of high power positive ion beam with JT-60 positive ion source in Japan–Korea joint experiment.
Authors: Kojima, A.1 kojima.atsushi@jaea.go.jp, Hanada, M.1, Jeong, S.H.2, Bae, Y.S.3, Chang, D.H.2, Kim, T.S.2, Lee, K.W.2, Park, M.2, Jung, B.K.2, Mogaki, K.1, Komata, M.1, Dairaku, M.1, Kashiwagi, M.1, Tobari, H.1, Watanabe, K.1
Source: Fusion Engineering & Design. Jan2016, Vol. 102, p81-87. 7p.
Subjects: Particle acceleration, Ion beams, Ion sources, Plasma beam injection heating, Japan. Atomic Energy Agency
Geographic Terms: Japan, Korea
Abstract: The long-pulse acceleration of the high-power positive ion beam has been demonstrated with the JT-60 positive ion source in the joint experiment among Japan Atomic Energy Agency (JAEA), Korea Atomic Energy Research Institute (KAERI) and National Fusion Research Institute (NFRI) under the collaboration program for the development of plasma heating and current drive systems. In this joint experiment, the increase of the heat load and the breakdowns induced by the degradation of the beam optics due to the gas accumulation was one of the critical issues for the long-pulse acceleration. As a result of development of the long-pulse operation techniques of the ion source and facilities of the neutral beam test stand in KAERI, 2 MW 100 s beam has been achieved for the first time. The achieved beam performance satisfies the JT-60SA requirement which is designed to be a 1.94 MW ion beam power from an ion source corresponding to total neutral beam power of 20 MW with 24 ion sources. Therefore, it was found that the JT-60 positive ion sources were applicable in the JT-60SA neutral beam injectors. Moreover, because this ion source is planned to be a backup ion source for KSTAR, the operational region and characteristic has been clarified to apply to the KSTAR neutral beam injector. [ABSTRACT FROM AUTHOR]
Copyright of Fusion Engineering & Design is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 112311028
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Demonstration of long-pulse acceleration of high power positive ion beam with JT-60 positive ion source in Japan–Korea joint experiment.
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  Data: <searchLink fieldCode="AR" term="%22Kojima%2C+A%2E%22">Kojima, A.</searchLink><relatesTo>1</relatesTo><i> kojima.atsushi@jaea.go.jp</i><br /><searchLink fieldCode="AR" term="%22Hanada%2C+M%2E%22">Hanada, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Jeong%2C+S%2EH%2E%22">Jeong, S.H.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Bae%2C+Y%2ES%2E%22">Bae, Y.S.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Chang%2C+D%2EH%2E%22">Chang, D.H.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Kim%2C+T%2ES%2E%22">Kim, T.S.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Lee%2C+K%2EW%2E%22">Lee, K.W.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Park%2C+M%2E%22">Park, M.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Jung%2C+B%2EK%2E%22">Jung, B.K.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Mogaki%2C+K%2E%22">Mogaki, K.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Komata%2C+M%2E%22">Komata, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Dairaku%2C+M%2E%22">Dairaku, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kashiwagi%2C+M%2E%22">Kashiwagi, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Tobari%2C+H%2E%22">Tobari, H.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Watanabe%2C+K%2E%22">Watanabe, K.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Fusion+Engineering+%26+Design%22">Fusion Engineering & Design</searchLink>. Jan2016, Vol. 102, p81-87. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Particle+acceleration%22">Particle acceleration</searchLink><br /><searchLink fieldCode="DE" term="%22Ion+beams%22">Ion beams</searchLink><br /><searchLink fieldCode="DE" term="%22Ion+sources%22">Ion sources</searchLink><br /><searchLink fieldCode="DE" term="%22Plasma+beam+injection+heating%22">Plasma beam injection heating</searchLink><br /><searchLink fieldCode="DE" term="%22Japan%2E+Atomic+Energy+Agency%22">Japan. Atomic Energy Agency</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Japan%22">Japan</searchLink><br /><searchLink fieldCode="DE" term="%22Korea%22">Korea</searchLink>
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  Label: Abstract
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  Data: The long-pulse acceleration of the high-power positive ion beam has been demonstrated with the JT-60 positive ion source in the joint experiment among Japan Atomic Energy Agency (JAEA), Korea Atomic Energy Research Institute (KAERI) and National Fusion Research Institute (NFRI) under the collaboration program for the development of plasma heating and current drive systems. In this joint experiment, the increase of the heat load and the breakdowns induced by the degradation of the beam optics due to the gas accumulation was one of the critical issues for the long-pulse acceleration. As a result of development of the long-pulse operation techniques of the ion source and facilities of the neutral beam test stand in KAERI, 2 MW 100 s beam has been achieved for the first time. The achieved beam performance satisfies the JT-60SA requirement which is designed to be a 1.94 MW ion beam power from an ion source corresponding to total neutral beam power of 20 MW with 24 ion sources. Therefore, it was found that the JT-60 positive ion sources were applicable in the JT-60SA neutral beam injectors. Moreover, because this ion source is planned to be a backup ion source for KSTAR, the operational region and characteristic has been clarified to apply to the KSTAR neutral beam injector. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Fusion Engineering & Design is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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      – SubjectFull: Ion sources
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