Plasmas, both in the laboratory and in space, are often not in thermodynamic equilibrium,
and the plasma electron distribution function is accordingly non-Maxwellian. Suprathermal …

This article presents, a resonant helical dual-arm spiral antenna, operating at 284MHz which
is introduced within the context of the Steady State Superconducting Tokamak (SST-1) …

Lower hybrid current drive (LHCD) has been demonstrated to be an important actuator for
controlling the current profiles of advanced tokamak plasmas, either in fully non-inductive or …

The LHCD system of the ADITYA-Upgrade tokamak is being upgraded by replacing the
existing grill launcher with a Passive Active Multijunction (PAM) launcher. The PAM launcher …

A detailed characterization of a high-power radio frequency (RF) broadband circularly
polarized two-arm spiral antenna is designed to operate within the frequency range of 0.1 …

In reactor-grade plasma, where density and temperature are very high, Fast Wave Current
Drive (FWCD) technique can be used to launch fast waves inside the plasma to sustain the …

The lower hybrid current drive (LHCD) system, which is a mature, robust, and reliable
heating and current drive system in a large number of tokamaks, is designed, developed …

The non-inductive current drive in low toroidal beta (β) steady-state superconducting
tokamak-1 (SST-1) is obtained using slow waves or Lower Hybrid waves (LHW). If β of the …

Earlier, a conventional grill launcher-based LHCD system has been developed to drive
plasma current non-inductively in tokamaks at IPR (ADITYA and SST1) at a frequency (fo …

Abstract A Passive Active Multijunction (PAM) launcher is designed for the ADITYA-U
Tokamak. The launcher will launch 250 kW of RF power at 3.7 GHz into the tokamak. The …