Electron Optic System of Powerful Large Orbit Gyro

Authors: V N Manuilov T Idehara M Yu Glyavin Information not available LaAgusu M Kamada T Kanemaki Wiehua Jiang K Yatsui

Publish Date: 2005/01/01

Volume: 26, Issue: 1, Pages: 15-28

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Abstract

Shortpulse powerful Large Orbit Gyrotron with total electron energy about 400 kV and beam power in the cavity up to 100 MW is now under developing at FIR FU Suitable for 200 ns pulse duration electronoptic system is analyzed Results of numerical simulation for explosion emission cusptype electron guns and magnetic field intensity about 8 T are presented Sensitivity of the guns to small deviations from the nominal operating regime is investigated Some versions of the gun with different accelerating potential as well as different beam current passing through the cavity 60300A are suggested Current reduction simplifies the problems of mode competition and potential depression in the cavity but at the same time decrease output power To diminish current special diaphragms are suggested Results of numerical simulation of collector corresponding to each version of the gun design including power density distributions along its surface are presented It is shown that beam quality and collector regimes are suitable for LOG operation

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