A5011130970- Magnetic confinement fusion research
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Electromagnetic Simulation and Numerical Methods
- Thermal Analysis in Power Transmission
- Electromagnetic Compatibility and Measurements
- Gyrotron and Vacuum Electronics Research
Institute for Plasma Research
2020-2023
As part of development program for a high power co-axial transmission line component test facility, an existing traveling wave resonator based stand is modified to improve gain and ring return loss. The 10 dB directional coupler in the earlier replaced with 14 couple radio frequency ring. To achieve improved isolation loss, design equipped two broadside strip-lines tunable gap between them. Detailed optimization without setup performed using simulator Computer Simulation Technology Microwave...
Abstract In general, superconducting tokamaks require low loop voltage current start-up for the safety purpose of their poloidal field coils. The inside vacuum vessel Steady State Superconducting Tokamak (SST-1) is in nature since its central solenoid located outside cryostat. SST-1 routinely performed by using electron cyclotron resonance (ECR) method at toroidal magnetic <?CDATA $B_\mathrm{t}$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msub>...
The high-power radio frequency source for ion cyclotron heating and current drive of ITER tokamak consists two identical 1.5 MW amplifier chains. These chains will be combined using a wideband hybrid combiner with adequate coupling flatness, phase balance, return loss, isolation response to generate 2.5 (RF) power in the range 36 60 MHz. As part in-house development program at ITER-India, flatness loss/isolation better than 0.4 −25 dB, respectively, has been simulated. A detailed analysis...
Vacuum windows are an essential part of any radio frequency (RF) system which launches/couples RF power from atmospheric to a vacuum environment. This paper describes the design double barrier ceramic coaxial window. Alumina 99.5% pure is considered as material while inner and outer conductors oxygen-free copper. As initial approach thickness, slope, depth in conductor varied performance window studied. The optimised achieve best insertion loss, return loss response for operating range up 65MHz.