Experimental mapping and benchmarking of magnetic field codes on the LHD Ion Accelerator

G. Chitarin, P. Agostinetti, A. Gallo, N. Marconato, H. Nakano, G. Serianni, Y. Takeiri, K. Tsumori

Research output: Contribution to conferencePaper

4 Citations (Scopus)

Abstract

For the validation of the numerical models used for the design of the Neutral Beam Test Facility for ITER in Padua [1], an experimental benchmark against a full-size device has been sought. The LHD BL2 injector [2] has been chosen as a first benchmark, because the BL2 Negative Ion Source and Beam Accelerator are geometrically similar to SPIDER, even though BL2 does not include current bars and ferromagnetic materials. A comprehensive 3D magnetic field model of the LHD BL2 device has been developed based on the same assumptions used for SPIDER. In parallel, a detailed experimental magnetic map of the BL2 device has been obtained using a suitably designed 3D adjustable structure for the fine positioning of the magnetic sensors inside 27 of the 770 beamlet apertures. The calculated values have been compared to the experimental data. The work has confirmed the quality of the numerical model, and has also provided useful information on the magnetic non-uniformities due to the edge effects and to the tolerance on permanent magnet remanence. © 2011 American Institute of Physics.
Original languageEnglish
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event2nd International Symposium on Negative Ions, Beams and Sources, NIBS2010 - , Japan
Duration: 1 Jan 2011 → …

Conference

Conference2nd International Symposium on Negative Ions, Beams and Sources, NIBS2010
CountryJapan
Period1/1/11 → …

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Chitarin, G., Agostinetti, P., Gallo, A., Marconato, N., Nakano, H., Serianni, G., ... Tsumori, K. (2011). Experimental mapping and benchmarking of magnetic field codes on the LHD Ion Accelerator. Paper presented at 2nd International Symposium on Negative Ions, Beams and Sources, NIBS2010, Japan. https://doi.org/10.1063/1.3637409