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Inoue S. Calculation of diamagnetic β and l by using Cauchy Condition Surface scheme. FUSION ENGINEERING AND DESIGN 2021. [DOI: 10.1016/j.fusengdes.2021.112401] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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2
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Corona D, Cruz N, Tommasi GD, Fernandes H, Joffrin E, Mattei M, Mele A, Miyata Y, Pironti A, Suzuki T, Urano H, Villone F. Plasma shape control assessment for JT-60SA using the CREATE tools. FUSION ENGINEERING AND DESIGN 2019. [DOI: 10.1016/j.fusengdes.2019.03.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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3
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Equilibrium Reconstruction and Equilibrium Properties in QUEST Tokamak. JOURNAL OF FUSION ENERGY 2019. [DOI: 10.1007/s10894-019-00209-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lee J, Kim S, Park J, Kim YG, An Y, Yoo MG, Yang JH, Chung KJ, Hwang Y, Na YS. Development of equilibrium fitting code using finite element method in versatile experiment spherical torus. FUSION ENGINEERING AND DESIGN 2018. [DOI: 10.1016/j.fusengdes.2018.04.122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ushiki T, Inomoto M, Itagaki M. Reconstruction of plasma shape and eddy current profile based on modified cauchy condition surface method in merging spherical tokamak. FUSION ENGINEERING AND DESIGN 2017. [DOI: 10.1016/j.fusengdes.2017.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Takechi M, Matsunaga G, Sakurai S, Sasajima T, Yagyu J, Kawamata Y, Kurihara K, Nakamura K. Progress of the magnetic sensor development for JT-60SA. FUSION ENGINEERING AND DESIGN 2017. [DOI: 10.1016/j.fusengdes.2017.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Fukuda T, Oikawa T, Takeji S, Isayama A, Kawano Y, Neyatani Y, Nagashima A, Nishitani T, Konoshima S, Tamai H, Fujita T, Sakamoto Y, Kamada Y, Ide S, Koide Y, Takenaga H, Kurihara K, Sakata S, Ozeki T, Kawamata Y, Miura YM. Advanced Real-Time Feedback Control in JT-60U High Performance Discharges for Application to Fusion Reactor Plasmas. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst02-a233] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Fukuda
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Oikawa
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - S. Takeji
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - A. Isayama
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Kawano
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Neyatani
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - A. Nagashima
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Nishitani
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - S. Konoshima
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - H. Tamai
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Fujita
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Sakamoto
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Kamada
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - S. Ide
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Koide
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - H. Takenaga
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - K. Kurihara
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - S. Sakata
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Ozeki
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Kawamata
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. M. Miura
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
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Hasegawa M, Nakamura K, Zushi H, Hanada K, Fujisawa A, Tokunaga K, Idei H, Nagashima Y, Kawasaki S, Nakashima H, Higashijima A. Current status and prospect of plasma control system for steady-state operation on QUEST. FUSION ENGINEERING AND DESIGN 2016. [DOI: 10.1016/j.fusengdes.2016.04.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Xue E, Zhang X, Luo J, Yu L. Plasma Shape Identification and Fitting on the Basis of Image Processing on Tokamak. JOURNAL OF FUSION ENERGY 2015. [DOI: 10.1007/s10894-015-9968-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Takechi M, Matsunaga G, Sakurai S, Sasajima T, Yagyu J, Hoshi R, Kawamata Y, Kurihara K, Nishikawa T, Ryo T, Kagamihara S, Nakamura K. Development of magnetic sensors for JT-60SA. FUSION ENGINEERING AND DESIGN 2015. [DOI: 10.1016/j.fusengdes.2015.06.108] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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Xue E, Zhang X, Nakamura K, Luo J, Yu L. Vacuum Field Calculation in Start-up for EAST. JOURNAL OF FUSION ENERGY 2015. [DOI: 10.1007/s10894-015-0011-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Miyata Y, Suzuki T, Takechi M, Urano H, Ide S. Assessment of the accuracy of plasma shape reconstruction by the Cauchy condition surface method in JT-60SA. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:073511. [PMID: 26233387 DOI: 10.1063/1.4926997] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
For the purpose of stable plasma equilibrium control and detailed analysis, it is essential to reconstruct an accurate plasma boundary on the poloidal cross section in tokamak devices. The Cauchy condition surface (CCS) method is a numerical approach for calculating the spatial distribution of the magnetic flux outside a hypothetical surface and reconstructing the plasma boundary from the magnetic measurements located outside the plasma. The accuracy of the plasma shape reconstruction has been assessed by comparing the CCS method and an equilibrium calculation in JT-60SA with a high elongation and triangularity of plasma shape. The CCS, on which both Dirichlet and Neumann conditions are unknown, is defined as a hypothetical surface located inside the real plasma region. The accuracy of the plasma shape reconstruction is sensitive to the CCS free parameters such as the number of unknown parameters and the shape in JT-60SA. It is found that the optimum number of unknown parameters and the size of the CCS that minimizes errors in the reconstructed plasma shape are in proportion to the plasma size. Furthermore, it is shown that the accuracy of the plasma shape reconstruction is greatly improved using the optimum number of unknown parameters and shape of the CCS, and the reachable reconstruction errors in plasma shape and locations of strike points are within the target ranges in JT-60SA.
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Affiliation(s)
- Y Miyata
- Japan Atomic Energy Agency, Naka, Ibaraki 311-0193, Japan
| | - T Suzuki
- Japan Atomic Energy Agency, Naka, Ibaraki 311-0193, Japan
| | - M Takechi
- Japan Atomic Energy Agency, Naka, Ibaraki 311-0193, Japan
| | - H Urano
- Japan Atomic Energy Agency, Naka, Ibaraki 311-0193, Japan
| | - S Ide
- Japan Atomic Energy Agency, Naka, Ibaraki 311-0193, Japan
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Eddy current-adjusted plasma shape reconstruction by Cauchy condition surface method on QUEST. FUSION ENGINEERING AND DESIGN 2011. [DOI: 10.1016/j.fusengdes.2011.04.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kawamata Y, Sugimura T, Yamaguchi T, Sueoka M, Sakata S, Totsuka T, Sato M, Kominato T, Naito O. Development of PC-Based Control System in JT-60SA. FUSION SCIENCE AND TECHNOLOGY 2011. [DOI: 10.13182/fst60-491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Kawamata
- Fusion Research and Development Directorate, Japan Atomic Energy Agency: 801-1, Naka-shi, Ibaraki-ken, 311-0193, Japan
| | - T. Sugimura
- Fusion Research and Development Directorate, Japan Atomic Energy Agency: 801-1, Naka-shi, Ibaraki-ken, 311-0193, Japan
| | - T. Yamaguchi
- Fusion Research and Development Directorate, Japan Atomic Energy Agency: 801-1, Naka-shi, Ibaraki-ken, 311-0193, Japan
| | - M. Sueoka
- Fusion Research and Development Directorate, Japan Atomic Energy Agency: 801-1, Naka-shi, Ibaraki-ken, 311-0193, Japan
| | - S. Sakata
- Fusion Research and Development Directorate, Japan Atomic Energy Agency: 801-1, Naka-shi, Ibaraki-ken, 311-0193, Japan
| | - T. Totsuka
- Fusion Research and Development Directorate, Japan Atomic Energy Agency: 801-1, Naka-shi, Ibaraki-ken, 311-0193, Japan
| | - M. Sato
- Fusion Research and Development Directorate, Japan Atomic Energy Agency: 801-1, Naka-shi, Ibaraki-ken, 311-0193, Japan
| | - T. Kominato
- Fusion Research and Development Directorate, Japan Atomic Energy Agency: 801-1, Naka-shi, Ibaraki-ken, 311-0193, Japan
| | - O. Naito
- Fusion Research and Development Directorate, Japan Atomic Energy Agency: 801-1, Naka-shi, Ibaraki-ken, 311-0193, Japan
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Development of the supervisory discharge operation monitoring system for JT-60. FUSION ENGINEERING AND DESIGN 2008. [DOI: 10.1016/j.fusengdes.2008.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Tsaun S, Jhang H. Real-time plasma boundary reconstruction in the KSTAR tokamak using finite element method. FUSION ENGINEERING AND DESIGN 2007. [DOI: 10.1016/j.fusengdes.2006.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kurihara K, Yonekawa I, Kawamata Y, Sueoka M, Hosoyama H, Sakata S, Ohshima T, Sato M, Kiyono K, Ozeki. T. Status and prospect of JT-60 plasma control and diagnostic data processing systems for advanced operation scenarios. FUSION ENGINEERING AND DESIGN 2006. [DOI: 10.1016/j.fusengdes.2006.04.058] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kenichi K, Youichi K, Michiharu S, Hiroki H, Izuru Y, Takahiro S, Toshihiro O, Shunsuke I. The basic methods for understanding of plasma equilibrium toward advanced control. FUSION ENGINEERING AND DESIGN 2005. [DOI: 10.1016/j.fusengdes.2005.06.103] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Yonekawa I, Kawamata Y, Totsuka T, Akasaka H, Sueoka M, Kurihara K, Kimura T. JT-60 Control System. FUSION SCIENCE AND TECHNOLOGY 2002. [DOI: 10.13182/fst02-a244] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- I. Yonekawa
- Japan Atomic Energy Research Institute, Naka-machi, Ibaraki-ken 311-0193, Japan
| | - Y. Kawamata
- Japan Atomic Energy Research Institute, Naka-machi, Ibaraki-ken 311-0193, Japan
| | - T. Totsuka
- Japan Atomic Energy Research Institute, Naka-machi, Ibaraki-ken 311-0193, Japan
| | - H. Akasaka
- Japan Atomic Energy Research Institute, Naka-machi, Ibaraki-ken 311-0193, Japan
| | - M. Sueoka
- Japan Atomic Energy Research Institute, Naka-machi, Ibaraki-ken 311-0193, Japan
| | - K. Kurihara
- Japan Atomic Energy Research Institute, Naka-machi, Ibaraki-ken 311-0193, Japan
| | - T. Kimura
- Japan Atomic Energy Research Institute, Naka-machi, Ibaraki-ken 311-0193, Japan
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