First direct comparison of whole beam and single beamlet divergences in a negative ion source with simultaneous BES and CFC tile calorimetry measurements

Neutral beam injection (NBI) systems are required for heating and current drive in the next generation fusion experiment ITER, and strict requirements are placed on the beamlet core divergence (<7 mrad) for transmission into the tokamak. The measurement of single beamlet divergence is challenging...

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Bibliographic Details
Main Authors: A. Hurlbatt, F. Bonomo, A. Pimazzoni, P. Veltri, M. Agostini, M. Barbisan, M. Brombin, R. Delogu, U. Fantz, B. Heinemann, N. den Harder, G. Orozco, C. Poggi, L. Schiesko, G. Serianni, M. Ugoletti, C. Wimmer
Format: Article
Language:English
Published: AIP Publishing LLC 2021-02-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0039080