System upgradation for surface mode negative ion beam extraction experiments in ROBIN

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 sequence, in synchronisation with the availability of High voltage Power Supply (HVPS) systems and routine operation has now b...

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Bibliographic Details
Published in:Fusion engineering and design 2017-01, Vol.114, p.187-191
Main Authors: Pandya, Kaushal, Bansal, Gourab, Gahlaut, Agrajit, Soni, Jignesh, Yadav, Ratnakar K., Mahesh, Vuppugalla, Tyagi, Himanshu, Parmar, KanuG, Mistri, Hiren, Bhagora, Jighesh, Prajapati, Bhavesh, Patel, Kartik, Bhuyan, Manas, Gouswami, Mehul, Bandyopadhyay, Mainak, Chakraborty, Arun K.
Format: Article
Language:English
Subjects:
Cesium
Commissioning
Control systems
Doppler effect
Electric power supplies
Heating
High voltages
Ion beams
Negative ion source
Negative ions
Plasma
R&D
Research & development
Upgrading
Warm water
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Summary: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 sequence, in synchronisation with the availability of High voltage Power Supply (HVPS) systems and routine operation has now been established in the cesiated, surface mode. Significant efforts have been placed in upgrading the system to initiate the surface mode operation. These include incorporation of a temperature controlled Cesium (Cs) delivery system, spectroscopic diagnostics for detection of Cs lines, installation of plasma grid heating and closed loop warm water circuit for source components heating and Doppler Shift Spectroscopy (DSS) system. The specific design and integration features for these upgrades are discussed and preliminary results obtained from the operation of ROBIN in the surface mode are presented.
ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2016.11.015