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Rev Sci Instrum. 2013 Jan;84(1):013507. doi: 10.1063/1.4773544.

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

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1
Prokhorov General Physics Institute, Vavilova ul. 38, Moscow 119991, Russia.

Abstract

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.

PMID:
23387650
DOI:
10.1063/1.4773544
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