@article{oai:repo.qst.go.jp:00074659,
 author = {Chitarin, G. and 小島, 有志 and Aprile, D. and Agostinetti, P. and Barbisan, M. and Denizeau, S. and 市川, 雅浩 and 平塚, 淳一 and 柏木, 美恵子 and Marconato, N. and Pimazzoni, A. and Sartori, E. and Serianni, G. and Veltri, P. and Yoshida, M. and Kojima, Atsushi and Ichikawa, Masahiro and Hiratsuka, Junichi and Kashiwagi, Mieko},
 issue = {A},
 journal = {Fusion Engineering and Design},
 month = {Jan},
 note = {In the framework of the collaboration between Consorzio RFX (Padova, Italy) and QST (Naka, Japan) two experimental campaigns have been organized on the Negative Ion Test Stand (NITS) in Naka, employing an ITER-like multi-beamlet configuration. These campaigns were aimed at compensating for the undesired magnetic deflection of the ion beam. The experiments have clarified the influence of operating parameters on the optical properties of the ion beam. The physical phenomena acting on the optics have been investigated, in particular the effect of an asymmetry of the ion current density at meniscus. Comparisons with simulations have been made and the modeling has been improved consequently. During the second experimental campaign, a perfect compensation of the ion deflection has been achieved.},
 pages = {792--795},
 title = {Improving a negative ion accelerator for next generation of neutral beam injectors: Results of QST-Consorzio RFX collaborative experiments},
 volume = {146},
 year = {2019}
}