Electron Cyclotron Resonance Heating Experiment in the GDT Magnetic Mirror: Recent Experiments and Future Plans

P. A. Bagryansky; E. D. Gospodchikov; Yu. V. Kovalenko; A. A. Lizunov; V. V. Maximov; S. V. Murakhtin; E. I. Pinzhenin; V. V. Prikhodko; V. Ya. Savkin; A. G. Shalashov; E. I. Soldatkina; A. L. Solomakhin; D. V. Yakovlev

doi:dx.doi.org/10.13182/FST14-864

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Electron Cyclotron Resonance Heating Experiment in the GDT Magnetic Mirror: Recent Experiments and Future Plans

P. A. Bagryansky, E. D. Gospodchikov, Yu. V. Kovalenko, A. A. Lizunov, V. V. Maximov, S. V. Murakhtin, E. I. Pinzhenin, V. V. Prikhodko, V. Ya. Savkin, A. G. Shalashov, E. I. Soldatkina, A. L. Solomakhin, D. V. Yakovlev

Fusion Science and Technology / Volume 68 / Number 1 / July 2015 / Pages 87-91

Technical Paper / Open Magnetic Systems 2014 / dx.doi.org/10.13182/FST14-864

First Online Publication:May 22, 2015

Updated:June 30, 2015

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A system for electron cyclotron resonance plasma heating (ECRH) has been recently installed at the GDT (Gas Dynamic Trap) facility at Budker Institute. The system is based on two 5.5-mm gyrotrons and is designed to deliver two microwave beams with total power of 700 kW and X-mode polarization that are absorbed at the fundamental cyclotron harmonic. A significant increase of basic plasma parameters (energy content, electron temperature, neutron flux) during the injection of microwave radiation has been registered. In particular, the on-axis electron temperature was increased from 200 eV to 600 eV in several shots with ECRH, which establishes a new record for this class of magnetic installation.