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

Journal Article · Fri May 15 00:00:00 EDT 2015 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4921322· OSTI ID:22392508

Denisov, G. G.; Zapevalov, V. E. ^[1]; Chirkov, A. V.; Fokin, A. P.; Kholoptsev, V. V.; Kuftin, A. N.; Luchinin, A. G.; Golubyatnikov, G. Yu.; Malygin, V. I.; Morozkin, M. V.; Manuilov, V. N.; Proyavin, M. D.; Sedov, A. S.; Tsvetkov, A. I. ^[1]; Sokolov, E. V.; Tai, E. M. ^[2]

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1. Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod (Russian Federation)
2. Gycom Ltd., Nizhny Novgorod (Russian Federation)

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{sup −6}.

• OSTI ID: 22392508
• Journal Information: Review of Scientific Instruments, Vol. 86, Issue 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CONTROL
COOLANTS
CURRENTS
GHZ RANGE
MHZ RANGE
MICROWAVE AMPLIFIERS
MICROWAVE RADIATION
NUCLEAR MAGNETIC RESONANCE
OPERATION
POLARIZATION
TUNING
VARIATIONS