Developments towards 1MW Gyrotron Test Facility at ITER-India

Vipal Rathod,S.L Rao,Anjali Sharma,Ronak Shah,Deepak Mandge,Rajvi Parmar,Amit Yadav,E Sharan Dilip,N.P Singh,E Poli,H Laqua,J Oosterbeek

doi:10.1051/epjconf/201920304013

Abstract

ITER-India, the Indian domestic agency for the ITER project, has the responsibility to supply a set of two high power Gyrotron sources (1 MW, 170 GHz, 3600 s) along with the auxiliary systems for Electron Cyclotron Heating & Current Drive applications. For such high power Gyrotron systems, one of the challenging areas is the system integration and establishment of reliable integrated system performance. ITER-India plans to establish the integrated Gyrotron system performance that essentially meets the ITER requirements in a Gyrotron Test Facility which is specifically being developed at ITER-India. This paper discusses about the recent updates towards the Test Facility development which includes, development of cost effective & modular Body Power Supply (BPS), Industrial grade prototype interlock & protection modules, a Gyrotron field simulator and cooling water distribution system.

Highlights

Gyrotron oscillators are capable of producing high CW RF power in the microwave and mm Wave frequency region and are widely used for ECRF applications on fusion devices [1]
The critical interfaces with High Voltage Power Supplies (HVPS), EC plant control system and waveguide transmission lines which are provided by other domestic agencies, are to be taken into account while finalizing the system design
The HV area consists of Body High Voltage Power Supply (BPS), Main High Voltage cathode Power Supply (MHVPS) Interface unit, Heater Transformer, HV disconnector switch etc

Summary

Introduction

Gyrotron oscillators are capable of producing high CW RF power in the microwave and mm Wave frequency region and are widely used for ECRF applications on fusion devices [1]. Considering limited time window that would be available for each Gyrotron set to successfully complete the site installation and acceptance tests, it becomes essential that one has to recreate the closest possible test configuration and prior establish the performance in a test facility. With this objective in mind in Phase-1 of the project, ITER-India is developing a 1MW Gyrotron Test Facility (IIGTF) with the help of an ITER like test Gyrotron along with the other subsystems that are either prototypes or close to actual ITER deliverables

Gyrotron Test Facility

Control System

Results

Cooling Distribution System

Diagnostics

Summary