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. 2015 May;86(5):054705.
doi: 10.1063/1.4921322.

Experimental tests of a 263 GHz gyrotron for spectroscopic applications and diagnostics of various media

M Yu Glyavin  1 , A V Chirkov  1 , G G Denisov  1 , A P Fokin  1 , V V Kholoptsev  1 , A N Kuftin  1 , A G Luchinin  1 , G Yu Golubyatnikov  1 , V I Malygin  1 , M V Morozkin  1 , V N Manuilov  1 , M D Proyavin  1 , A S Sedov  1 , E V Sokolov  2 , E M Tai  2 , A I Tsvetkov  1 , V E Zapevalov  1
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Experimental tests of a 263 GHz gyrotron for spectroscopic applications and diagnostics of various media

M Yu Glyavin et al. Rev Sci Instrum. 2015 May.

Abstract

A 263 GHz continuous-wave (CW) gyrotron was developed at the IAP RAS for future applications as a microwave power source in Dynamic Nuclear Polarization / Nuclear magnetic resonance (DNP/NMR) spectrometers. A new experimental facility with a computerized control was built to test this and subsequent gyrotrons. We obtained the maximum CW power up to 1 kW in the 15 kV/0.4 A operation regime. The power about 10 W, which is sufficient for many spectroscopic applications, was realized in the low current 14 kV/0.02 A regime. The possibility of frequency tuning by variation of the coolant temperature about 4 MHz/1 °C was demonstrated. The spectral width of the gyrotron radiation was about 10(-6).

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