학술논문
Initial results from time-resolved LaBr based hard x-ray spectrometer for ADITYA-U tokamak.
Document Type
Article
Author
Source
Subject
*HARD X-rays
*X-ray spectrometers
*CYCLOTRON resonance
*TOKAMAKS
*UTILITIES (Computer programs)
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Language
ISSN
0034-6748
Abstract
Runaway electrons (REs) are passively studied by hard x-ray (HX) emissions generated by REs. A LaBr3(Ce) detector-based HX spectroscopic diagnostic (operational within ∼75 keV to 3.5 MeV) has been set up on the ADITYA-U. The diagnostic acquisition software utility is upgraded to obtain the temporal evolution of the HX spectrum to understand the RE energy distribution in plasma during its various phases. The peak position moves to lower energy for Ohmically heated discharges (200–80 keV), indicating a relative increase in the thermal particle content in the plasma. The peak position of RE energy shows a decreasing tendency with increasing ne with Ne gas puffing and termination of the electron cyclotron resonance pulse. [ABSTRACT FROM AUTHOR]