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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Veröffentlicht in:	Review of scientific instruments 2013-01, Vol.84 (1), p.013507-013507
Hauptverfasser:	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:	Artikel
Sprache:	eng
Schlagworte:	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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Zusammenfassung:	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