A spatially varying transverse magnetic filter field (TMF) is present in an E× B plasma-based
negative ion source to improve negative ion yield. The TMF strength ranges from 1 to 10 mT …

Negative ion plasmas at low temperatures are essential for a wide variety of plasma
applications, including neutral beam injection heating in fusion devices, oxide thin layer …

Impedance matching circuit between radio frequency (RF) generator and the plasma load,
placed between them, determines the RF power transfer from RF generator to the plasma …

Helicon wave heated plasmas are much more efficient in terms of ionization per unit power
consumed. A permanent magnet based compact helicon wave heated plasma source is …

H− ion based neutral beam injector is a critical heating and current drive system in a fusion
reactor. However, the present H− ion source configuration has limitations in terms of …

In this paper, formation of a double layer (DL) is studied in the background plasma
(considering only electrons and ions) in the presence of a magnetic field in the context of the …

The RF-driven negative hydrogen ion source (H‾, D‾) for the international fusion experiment
ITER has a width of 0.9 m and a height of 1.9 m and is based on a ⅛ scale prototype source …

The Doppler Shift Spectroscopy (DSS) diagnostic is in the conceptual stage to estimate
beam divergence, stripping losses, and beam uniformity of the 100 keV hydrogen …

ROBIN, the first step in the Indian R&D program on negative ion beams has reached an
important milestone, with the production of negative ions in the surface conversion mode …

Operational commissioning of ROBIN forms an important milestone in the Indian programme
on the R&D on negative ion beams. The commissioning activity has been effected in …