Optimization of operation of a three-electrode gyrotron with the use of a flow-type calorimeter

Results are presented for measurements of microwave power of the Borets-75/0.8 gyrotron with recovery of residual electron energy, which were performed by a flow-type calorimeter. This gyrotron is a part of the ECR plasma heating complex put into operation in 2010 at the L-2M stellarator. The new ca...

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Bibliographic Details
Published in:Review of scientific instruments 2013-01, Vol.84 (1), p.013507-013507
Main Authors: Kharchev, Nikolay K., Batanov, German M., Kolik, Leonid V., Malakhov, Dmitrii V., Petrov, Aleksandr Ye, Sarksyan, Karen A., Skvortsova, Nina N., Stepakhin, Vladimir D., Belousov, Vladimir I., Malygin, Sergei A., Tai, Yevgenii M.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CALORIMETERS
Electric potential
ELECTRODES
ELECTRON CYCLOTRON-RESONANCE
Gyrotrons
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Magnetic fields
MICROWAVE AMPLIFIERS
MICROWAVE HEATING
Microwaves
Monitoring
OPERATION
OPTIMIZATION
PLASMA HEATING
Power supplies
RF SYSTEMS
Voltage
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Summary:Results are presented for measurements of microwave power of the Borets-75/0.8 gyrotron with recovery of residual electron energy, which were performed by a flow-type calorimeter. This gyrotron is a part of the ECR plasma heating complex put into operation in 2010 at the L-2M stellarator. The new calorimeter is capable of measuring microwave power up to 0.5 MW. Monitoring of the microwave power makes it possible to control the parameters of the gyrotron power supply unit (its voltage and current) and the magnetic field of the cryomagnet in order to optimize the gyrotron operation and arrive at maximum efficiency.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4773544