Development of alpha particle measurement method by beam neutralization method

2009 Fiscal Year Final Research Report

• Project/Area Number: 16082201
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Tohoku University
• Principal Investigator: SASAO Mamiko Tohoku University, 大学院・工学研究科, 教授 (00144171)
• Co-Investigator(Kenkyū-buntansha): KANEKO Osamu 核融合科学研究所, 大型ヘリカル研究部, 教授 (00126848) ; WADA Motoi 同志社大学, 工学部, 教授 (30201263)
• Co-Investigator(Renkei-kenkyūsha): HIRANO Ypuichi 産業技術総合研究所, エネルギー技術研究部門, 主任研究員 (80357863) ; KITAJIMA Sumio 東北大学, 大学院・工学研究科, 准教授 (30161475)
• Project Period (FY): 2004 – 2009
• Keywords: 中性粒子ビーム / イオンビーム / 負イオンビーム / アルファ粒子計測 / 荷電変換

Research Abstract

As a realistic and promising method to diagnose alpha particles produced in a DT self-sustaining burning plasma, a "beam probe charge exchange system" was designed applicable to the DT experiments on International Thermonuclear Experimental Reactor (ITER). This method can achieve the desired S/N level if the incident ground state He^0 beam is produced through an auto-detachment of an 1-2 MeV He^- beam of 10 mA. Considering the conversion efficiency from He^+ to He^-, a strong focusing He+ beam was designed and constracted. A beam current of more than 2 A was obtained at acceleration voltages of 20-25 kV with a beam radius about 2cm at the designed beam waist, where a conversion alkali-vapor cell would be located. For the He^0 production, a test stand device was built and a ground state He^0 beam was successfully generated through the "free flight method". In summary, the principle and the engineering feasibility of "beam probe charge exchange system" has been proved.

Research Products

• [Journal Article] Fine-Structure Characteristics in the Emittance Images of a Strongly Focusing He Beam (2010)
  • Author(s): M.Sasao, T.Kobuchi, M.Kisaki, H.Takahashi, A.Okamoto, S.Kitajima, O.Kaneko, Y.Tsumori, K.Shinto, M.Wada
  • Journal Title: Review of Scientific Instruments Vol.81(2) Pages: 02B115
  • Peer Reviewed
• [Journal Article] Development and irradiation test of lost alpha detection system for ITER (2010)
  • Author(s): M.Nishiura, T.Nagasaka, K.Fujioka, Y.Fujimoto, T.Tanaka, T.Ido, S.Yamamoto, S.Kashiwa, M.Sasao
  • Journal Title: Rev.Sci.Instrum. Vol.81(2) Pages: 10D313
  • Peer Reviewed
• [Journal Article] Emittance measurement of multi-species ion beam produced via two-step charge exchange process in a Li vapor cell. (2010)
  • Author(s): M.Kisaki, N.Tanaka, T.Nagamura, K.Terai, A.Okamoto, S.Kitajima, M.Sasao, M.Wada
  • Journal Title: Journal of Plasma Fusion Reserch, Series 9
  • Peer Reviewed
• [Journal Article] High density helicon source for beam attenuating target (2009)
  • Author(s): A.Okamoto, T.Isono, T.Kobuchi, S.Kitajima, A.Okamoto, T.Isono, T.Nishiuchi, H.Takahashi, S.Kitajima, M.Sasao
  • Journal Title: Journal of Plasma and Fusion Research SERIES Vol.9 Pages: 428-431
  • Peer Reviewed
• [Journal Article] Interaction of Helium Ion Beam with Argon Gas and Plasma (2009)
  • Author(s): A.Okamoto, T.Isono, T.Kobuchi, S.Kitajima, M.Sasao
  • Journal Title: Journal of Plasma and Fusion Research SERIES Vol.8 Pages: 0039-0043
  • Peer Reviewed
• [Journal Article] Characteristics of a He Beam Produced in Lithium Vapor, NEGATIVE IONS, BEAMS AND SOURCES : Proceedings of the 1st International Symposium on Negative Ions, Beams and Sources. (2009)
  • Author(s): N.Tanaka, T.Nagamura, M.Kikuchi, A.Okamoto, T.Kobuchi, S.Kitajima, M.Sasao, H.Yamaoka, M.Wada
  • Journal Title: AIP Conference Proceedings Vol.1097 Pages: 443-448
  • Peer Reviewed
• [Journal Article] Evaluation of 25keV Helium Hydrogen Ion Beam for Alpha Particle Measurement in ITER (2009)
  • Author(s): H.Sakakita, S.Kiyama, H.Koguchi, Y.Hirano, T.Shimada, M.Sasao, et al.
  • Journal Title: Journal of Plasma and Fusion Research SERIES Vol.8 Pages: 0674-0679
  • Peer Reviewed
• [Journal Article] Study of the Beam Transport in a High-Energy Neutral Helium Beam System with Double Charge Exchange Cell (2009)
  • Author(s): M.Kikuchi, N.Tanaka, T.Nagamura, T.Kobuchi, A.Okamoto, S.Kitajima, M.Sasao, H.Ymaoka, M.Wada
  • Journal Title: Journal of Plasma and Fusion Research SERIES Vol.8 Pages: 1539-1541
  • Peer Reviewed
• [Journal Article] Low-energy particle interaction at carbon nanowalls on W surface (2009)
  • Author(s): N.Tanaka, H.Yamaoka, M.Nishiura, K.Tsumori, T.Nagamura, M.Sasao, T.Kenmotsu, Y.Matsumoto, M.Wada
  • Journal Title: Journal of Nuclear Materials Pages: 1035-1038
  • Peer Reviewed
• [Journal Article] Characteristics of a He- Beam Produced in Lithium Vapor (2009)
  • Author(s): N.Tanaka, T.Nagamura, M.Kikuchi, A.Okamoto, T.Kobuchi, S.Kitajima, M.Sasao, H.Yamaoka, M.Wada
  • Journal Title: AIP conf.Proc. Vol.1097 Pages: 443-448
  • Peer Reviewed
• [Journal Article] Low-energy particle interaction at carbon nanowalls on W surface (2009)
  • Author(s): N.Tanaka, H.Yamaoka, M.Nishiura, K.Tsumori, T.Nagamura, M.Sasao, T.Kenmotsu, Y.Matsumoto, M.Wada
  • Journal Title: Journal of Nuclear Materials Vol.390-391 Pages: 1035-1038
  • Peer Reviewed
• [Journal Article] Electrons in the negative-ion -based NBI on JT-60U (2009)
  • Author(s): M.Kisaki, M.Hanada, M.Kamada, Y.Tanaka, K.Kobayashi, M.Sasao
  • Journal Title: AIP conf.Proc. Vol.1097 Pages: 443-448
  • Peer Reviewed
• [Journal Article] Development of a helicon plasma source for the measurement of He^* component in a He^0 beam (2008)
  • Author(s): A.Okamoto, K.Iwazaki, T.Isono, T.Kobuchi, S.Kitajima, M.Sasao
  • Journal Title: Plasma and Fusion Research Vol.3 Pages: 059-1-059-7
  • Peer Reviewed
• [Journal Article] Effect of ion beam and neutron irradiations on the luminescence of polycrystalline Ce-doped Y_3Al_5O_<12> ceramics (2008)
  • Author(s): T.Hirouchi, M.Nishiura, T.Nagasaka, T.Ido, D.Funaki, T.Kobuchi, A.Okamoto, S.Kitajima, M.Sasao, K.Fujioka, M.Isobe, T.Mutoh
  • Journal Title: Journal of Nuclear Materials Vol.386-388 Pages: 1049-1051
  • Peer Reviewed
• [Journal Article] Development of an Energetic He^0 Beam Injector for Fusion Application (2008)
  • Author(s): M.Sasao, T.Kobuchi, N.Tanaka, M.Kisaki, M.Kikuchi, T.Nagamura, A.Okamoto, S.Kitajima, O.Kaneko, M.Nishiura, K.Tsumori, M.Wada, K.Shinto, H.Sakakita, S.Kizima, Y.Hirano
  • Journal Title: IAEA-CN-165/FT/P28
  • Peer Reviewed
• [Journal Article] Effects of filament geometry on the arc efficiency of a high-intensityHe^+ ion source (2008)
  • Author(s): T.Kobuchi, M.Kisaki, K.Shinto, A.Okamoto, S.Kitajima, M.Sasao, K.Tsumori, O.Kaneko, H.Sakakita, S.Kiyama, Y.Hirano, M.Wada
  • Journal Title: Rev.Sci.Instrum. Vol.79 Pages: "10F316-1"-"10F316-3"
  • Peer Reviewed
• [Journal Article] Development of a He^0 Source for Confined Alpha Particle Measurement (2008)
  • Author(s): N.Tanaka, M.Kisaki, K.Iwazaki, M.Kikuchi, A.Okamoto, T.Kobuchi, K.Shinto, S.Kitajima, K.Tsumori, O.Kaneko, M.Wada, M.Sasao
  • Journal Title: AIP conf.Proc. Vol.988 Pages: 335-338
  • Peer Reviewed
• [Journal Article] Fusion Product Diagnostics (2008)
  • Author(s): M.Sasao, et al.
  • Journal Title: Fusion Science & Technology Vol.53 Pages: 604-639
  • Peer Reviewed
• [Journal Article] Development of a strongly focusing high-intensity He^+ ion source for a confined alpha particle measurement at ITER (2008)
  • Author(s): M.Kisaki, K.Shinto, T.Kobuchi, A.Okamoto, S.Kitajima, M.Sasao, K.Tsumori, M.Nishiura, O.Kaneko, Y.Matsuda, M.Wada, H.Sakakita, S.Kiyama, Y.Hirano
  • Journal Title: Review of Scientific Instruments Vol.79 Pages: 2C1131
  • Peer Reviewed
• [Journal Article] Diagnostics of a He^+ beam extracted from a compact magnetic bucket-type ion source (2008)
  • Author(s): H.Sugawara, K.Shinto, N.Tanaka, S.Takeuchi, M.Kikuchi, A.Okamoto, S.Kitajima, M.Sasao, M.Wada
  • Journal Title: Review of Scientific Instruments Vol.79 No.2 Pages: 02B708
  • Peer Reviewed
• [Journal Article] A beam transport system for an intense He- beam source (2008)
  • Author(s): Tanaka N, Kikuchi M, Nagamura T, Sugawara H, Takeuchi S, Kobuchi T, Okamoto A, Shinto K, Kitajima S, Sasao M, Wada M.
  • Journal Title: Review of Scientific Instruments Vol.79 No.2 Pages: 02A512-1-02A512-3
  • Peer Reviewed
• [Journal Article] Energy straggling of low-energy ion beam in a charge exchange cell for negative ion production (2008)
  • Author(s): S.Takeuchi, M.Sasao, H.Sugawara, N.Tanaka, M.Kisaki, A.Okamoto, K.Shinto, S.Kitajima
  • Journal Title: Review of Scientific Instruments Vol.79 No.2 Pages: 02A512-1-02A512-3
  • Peer Reviewed
• [Journal Article] Laser Absorption Spectroscopy for Diagnostics of a Neutral Helium Beam (2007)
  • Author(s): Atsushi OKAMOTO, Katsuhiro SHINTO, Sumio KITAJIMA, Mamiko SASAO
  • Journal Title: Plasma and Fusion Research Vol.2 Pages: S1044-1-S1044-4
  • Peer Reviewed
• [Journal Article] Proof of Principle Experiment of a Fast He^0 Beam Production (2007)
  • Author(s): N.Tanaka, H.Sugawara, S.Takeuchi, S.Asakawa, A.Okamoto, K.Shinto, S.Kitajima, M.Sasao, M.Wada
  • Journal Title: Plasma Fusion Res. Vol.2 Pages: "S1105/1"-"S1105/4"
  • Peer Reviewed
• [Journal Article] Study of Metastable Population Density in a Hollow Cathode Helium Discharge (2007)
  • Author(s): A.Okamoto, T.Kobuchi, S.Kitajima, M.Sasao
  • Journal Title: Plasma and Fusion Research Vol.2 Pages: 029-037
  • Peer Reviewed
• [Journal Article] Steering Committee Members of MEXT Scientific Research of Priority Areas. "Advanced Diagnostics for Burning Plasma Experiments". (2007)
  • Author(s): M.Sasao
  • Journal Title: Fusion Science & Technology 51 Pages: 40-45
  • Peer Reviewed
• [Journal Article] Particle Refractions of Low Energy Light Ions from a Vanadium Alloy (V-4Cr-. 4Ti) (2006)
  • Author(s): H.Yamaoka, N.Tanaka, Y.Matsumoto, M.Nishiura, K.Tsumori, S.Takeuchi, H.Sugawara, K.Shinto, A.Okamoto, M.Sasao, M.Wada
  • Journal Title: Journal of Nuclear Materials Vol.337-339 Pages: 942-945
  • Peer Reviewed
• [Journal Article] Confined alpha particle diagnostic system using an energetic He^0 beam for ITER (2006)
  • Author(s): M.Sasao, K.Shinto, M.Isobe, M.Nishiura, O.Kaneko, M.Wada, C.I.Walker, S.Kitajima, A.Okamoto, H.Sugawara, S.Takeuchi, N.Tanaka, H.Aoyama, M.Kisaki
  • Journal Title: Review of Scientific Instruments Vol.77 Pages: 10F130
  • Peer Reviewed
• [Journal Article] Optimization of a compact multicusp He^+ ion source for double-charge-exchanged He^- beam (2006)
  • Author(s): K.Shinto, H.Sugawara, M.Takenaga, S.Takeuchi, N.Tanaka, A.Okamoto, S.Kitajima, M.Sasao, M.Nishiura, M.Wada
  • Journal Title: Review of Scientific Instruments Vol.77 Pages: 03B512-03B512-4
  • Peer Reviewed
• [Journal Article] Conceptual Design of Confined Alpha Particle Diagnostic System for ITER using an Energetic He^0 Beam (2006)
  • Author(s): K.Shinto, M.Sasao, M.Isobe, M.Nishiura, O.Kaneko, M.Wada, C.I.Walker, H.Haskell, S.Kitajima, A.Okamoto, H.Sugawara, S.Takeuchi, N.Tanaka, H.Aoyama, M.Kisaki
  • Journal Title: Electric publication on
  • URL: http://dg1.nifs.ac.jp/IAEATM-EP2005/program.html,21
  • Peer Reviewed
• [Journal Article] Density and velocity of H^- in the extraction region of a negative ion source estimated from the change in H^- beam current due to a pulse laser injection (2006)
  • Author(s): Y.Matsumoto, M.Nishiura, K.Matsuoka, M.Wada, M.Sasao, H.Yamaoka
  • Journal Title: Review of Scientific Instruments Vol.77 Pages: 03B705-03-B705-4
  • Peer Reviewed
• [Journal Article] Optimization of a compact multicusp He^+ ion source for double-charge-exchanged He- beam. (2006)
  • Author(s): K.Shinto, H.Sugawara, M.Takenaga, S.Takeuchi, N.Tanaka, A.Okamoto, S.Kitajima, M.Sasao, M.Nishiura, M.Wada
  • Journal Title: Review of Scientific Instruments Vol.77 Pages: 03B512-03B512-4
  • Peer Reviewed
• [Journal Article] Design of a Fast Neutral He Beam System for Feasibility Study of Charge-Exchange Alpha-Particle Diagnositcs in a Thermonuclear Fusion Reactor (2006)
  • Author(s): K.Shinto, H.Sugawara, S.Takeuchi, S.Kitajima, M.Takenaga, M.Sasao, M.Nishiura, O.Kaneko, S.Kiyama, M.Wada
  • Journal Title: Proceedings of 2005 Particle Accelerator Conference, Knoxville, Tennessee Pages: 2630-2632
  • Peer Reviewed
• [Journal Article] Ion sources for fusion plasma diagnostics (2005)
  • Author(s): M.Sasao, K.A.Connor, K.Ida, H.Iguchi, A.A.Ivanov, M.Nishiura, D.M.Thomas, M.Wada, M.Yoshinuma
  • Journal Title: IEEE Transaction on Plasma Science Vol.33 Pages: 1872-1900
  • Peer Reviewed
• [Presentation] Measurement of Charge Exchange Cross Sections for theHe^- Production in Li (2010)
  • Author(s): M.Sasao, et al.
  • Organizer: The 22nd International Conference on Atomic Physics
  • Place of Presentation: Cairns, Australia
  • Year and Date: 20100725-20100730
• [Presentation] Development of an Energetic He^0 Beam for Alpha Particle Diagnostics on ITER (2010)
  • Author(s): M.Sasao, et al.
  • Organizer: The European Physical Society (EPS) conferences
  • Place of Presentation: Dublin, Ireland
  • Year and Date: 20100625-20100629
• [Presentation] "Report from Priority Area : Advanced Diagnostics for Burning Plasmas", "Feasibility Studies on confined and escaping alpha diagnostics at LHD", "Report of the Neutron Working Group" (2008)
  • Author(s): M.Sasao
  • Organizer: 15th ITPA-TG Meeting on Diagnostic
  • Place of Presentation: Ghandinabad, India
  • Year and Date: 20081114-20081121
• [Presentation] Development of an Energetic He^0 Beam Injector for Fusion Application (2008)
  • Author(s): M.Sasao, T.Kobuchi, N.Tanaka, M.Kisaki, M.Kikuchi, T.Nagamura, A.Okamoto, S.Kitajima, O.Kaneko, M.Nishiura, K.Tsumori, M.Wada, K.Shinto, H.Sakakita, S.Kiyama, Y.Hirano
  • Organizer: 22nd IAEA Fusion Energy Conf.
  • Place of Presentation: Geneva, Swilzerland
  • Year and Date: 20081011-20081018
• [Presentation] University activities in Japan (2007)
  • Author(s): M.Sasao
  • Organizer: 12th Meeting of the ITPA Topical Group on Diagnostics
  • Place of Presentation: Princeton, USA
  • Year and Date: 20070326-20070330
• [Presentation] ITER diagnostic beam for energetic alpha particle measurement (2006)
  • Author(s): M.Sasao
  • Organizer: Japan EU Coordinating Committee on Neutral Beams
  • Place of Presentation: Naka
  • Year and Date: 20061212-20061215
• [Presentation] R&D Status of Beam Neutralization System (2006)
  • Author(s): M.Sasao
  • Organizer: 10th Meeting of the ITPA Topical Group on Diagnostics
  • Place of Presentation: Moscow, Russian Federation
  • Year and Date: 20060410-20060414
• [Presentation] Advanced Diagnostics for Burning Plasmas (2006)
  • Author(s): M.Sasao
  • Organizer: Meeting on ITER Relevant Diagnostic Developments in Japan combined with the Meeting on Priority Research Area
  • Place of Presentation: Sendai
  • Year and Date: 2006-09-04
• [Presentation] Overview of recent activities of the priority research area "Advanced Diagnostics for Burning Plasmas". (2006)
  • Author(s): M.Sasao
  • Organizer: Meeting on ITER Relevant Diagnostic Developments in Japan combined with the. Meeting on Priority Research Area "Advanced Diagnostics for Burning Plasmas"
  • Place of Presentation: Sendai
  • Year and Date: 2006-09-04
• [Book] プラズマ診断の基礎と応用(プラズマ核融合学会編)(共著(担当§9.7核反応計測) (2006)
  • Author(s): 間瀬敦、笹尾真実子, 他
  • Total Pages: 351-361
  • Publisher: コロナ社
• [Remarks] 研究室ホームページ
  • URL: http://tsubaki.qse.tohoku.ac.jp/index.html
• [Patent(Industrial Property Rights)] タンデム加速装置および電荷交換器 (2010)
  • Inventor(s): 笹尾真実子、和田元、北島純男、岡本敦、寺井健祐
  • Industrial Property Rights Holder: 東北大学、同志社大学
  • Industrial Property Number: 特許,特願2010-254663
  • Filing Date: 2010-11-15