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Title: Modeling activities on the negative-ion-based Neutral Beam Injectors of the Large Helical Device

Abstract

At the National Institute for Fusion Science (NIFS) large-scaled negative ion sources have been widely used for the Neutral Beam Injectors (NBIs) mounted on the Large Helical Device (LHD), which is the world-largest superconducting helical system. These injectors have achieved outstanding performances in terms of beam energy, negative-ion current and optics, and represent a reference for the development of heating and current drive NBIs for ITER.In the framework of the support activities for the ITER NBIs, the PRIMA test facility, which includes a RF-drive ion source with 100 keV accelerator (SPIDER) and a complete 1 MeV Neutral Beam system (MITICA) is under construction at Consorzio RFX in Padova.An experimental validation of the codes has been undertaken in order to prove the accuracy of the simulations and the soundness of the SPIDER and MITICA design. To this purpose, the whole set of codes have been applied to the LHD NBIs in a joint activity between Consorzio RFX and NIFS, with the goal of comparing and benchmarking the codes with the experimental data. A description of these modeling activities and a discussion of the main results obtained are reported in this paper.

Authors:
; ; ; ; ;  [1];  [2]; ; ;  [3]
  1. Consorzio RFX, Associazione Euratom-ENEA sulla Fusione, Corso Stati Uniti 4, 35127 Padova (Italy)
  2. INFN, Laboratori Nazionali di Legnaro, V.le dell'Universita 2, 35020 Legnaro (Italy)
  3. National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292 (Japan)
Publication Date:
OSTI Identifier:
21611699
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1390; Journal Issue: 1; Conference: 2. international symposium on negative ions, beams and sources, Takayama City (Japan), 16-19 Nov 2010; Other Information: DOI: 10.1063/1.3637424; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 43 PARTICLE ACCELERATORS; ANIONS; BEAM INJECTION HEATING; COMPUTERIZED SIMULATION; DESIGN; ELECTROSTATIC ACCELERATORS; ION SOURCES; ITER TOKAMAK; KEV RANGE; LHD DEVICE; MEV RANGE; NEUTRAL ATOM BEAM INJECTION; PERFORMANCE; PLASMA BEAM INJECTION; PLASMA SIMULATION; RF SYSTEMS; TEST FACILITIES; US NATIONAL IGNITION FACILITY; ACCELERATORS; BEAM INJECTION; CHARGED PARTICLES; CLOSED PLASMA DEVICES; ENERGY RANGE; HEATING; IONS; PLASMA HEATING; SIMULATION; THERMONUCLEAR DEVICES; THERMONUCLEAR REACTORS; TOKAMAK DEVICES; TOKAMAK TYPE REACTORS

Citation Formats

Agostinetti, P., Antoni, V., Chitarin, G., Pilan, N., Serianni, G., Veltri, P., Cavenago, M., Nakano, H., Takeiri, Y., and Tsumori, K. Modeling activities on the negative-ion-based Neutral Beam Injectors of the Large Helical Device. United States: N. p., 2011. Web. doi:10.1063/1.3637424.
Agostinetti, P., Antoni, V., Chitarin, G., Pilan, N., Serianni, G., Veltri, P., Cavenago, M., Nakano, H., Takeiri, Y., & Tsumori, K. Modeling activities on the negative-ion-based Neutral Beam Injectors of the Large Helical Device. United States. doi:10.1063/1.3637424.
Agostinetti, P., Antoni, V., Chitarin, G., Pilan, N., Serianni, G., Veltri, P., Cavenago, M., Nakano, H., Takeiri, Y., and Tsumori, K. Mon . "Modeling activities on the negative-ion-based Neutral Beam Injectors of the Large Helical Device". United States. doi:10.1063/1.3637424.
@article{osti_21611699,
title = {Modeling activities on the negative-ion-based Neutral Beam Injectors of the Large Helical Device},
author = {Agostinetti, P. and Antoni, V. and Chitarin, G. and Pilan, N. and Serianni, G. and Veltri, P. and Cavenago, M. and Nakano, H. and Takeiri, Y. and Tsumori, K.},
abstractNote = {At the National Institute for Fusion Science (NIFS) large-scaled negative ion sources have been widely used for the Neutral Beam Injectors (NBIs) mounted on the Large Helical Device (LHD), which is the world-largest superconducting helical system. These injectors have achieved outstanding performances in terms of beam energy, negative-ion current and optics, and represent a reference for the development of heating and current drive NBIs for ITER.In the framework of the support activities for the ITER NBIs, the PRIMA test facility, which includes a RF-drive ion source with 100 keV accelerator (SPIDER) and a complete 1 MeV Neutral Beam system (MITICA) is under construction at Consorzio RFX in Padova.An experimental validation of the codes has been undertaken in order to prove the accuracy of the simulations and the soundness of the SPIDER and MITICA design. To this purpose, the whole set of codes have been applied to the LHD NBIs in a joint activity between Consorzio RFX and NIFS, with the goal of comparing and benchmarking the codes with the experimental data. A description of these modeling activities and a discussion of the main results obtained are reported in this paper.},
doi = {10.1063/1.3637424},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1390,
place = {United States},
year = {2011},
month = {9}
}