Non-inductive current drive at zero loop voltage using LHCD PAM launcher on ADITYA-U

For the first time, the ADITYA-U tokamak has sustained a plasma current of ∼40 kA purely through lower hybrid waves (LHWs) using a passive-active multijunction (PAM) launcher, without any loop voltage. While inductive discharges are limited to ∼150 ms by the available loop voltage, injection of LHWs...

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Bibliographic Details

Published in:	Nuclear Fusion
Main Authors:	Jagabandhu Kumar, P.K. Sharma, K.K. Ambulkar, P.R. Parmar, C.G. Virani, S. Sharma, C. Singh, A.L. Thakur, A. Kumar, S. Aich, H. Raj, R. Kumar, Shivam Gupta, M.N. Makwana, V. Siju, R. Tanna, B.K. Shukla, D. Raju, R. Rajpal, S.A. Nair, J. Ghosh, P.K. Chattopadhyay
Format:	Article
Language:	English
Published:	IOP Publishing 2025-01-01
Subjects:	lower hybrid current drive (LHCD) PAM antenna suprathermal electrons hard x-ray ALOHA LHCD efficiency
Online Access:	https://doi.org/10.1088/1741-4326/ae1049