Title :
Investigation of subterahertz gyrotron for DNP NMR spectroscopy at IAP RAS
Author :
Glyavin, M.Yu. ; Denisov, Gregory G. ; Zavolsky, N.A. ; Zapevalov, V.E. ; Kuftin, A.N. ; Manuilov, V.N. ; Morozkin, M.V. ; Sedov, A.S. ; Soluyanova, Elena A. ; Tai, Evgeny M. ; Chirkov, A.V.
Author_Institution :
Inst. of Appl. Phys., Nizhny Novgorod, Russia
Abstract :
The present paper concerns the state of the art of the development and experimental investigations of subterahertz gyrotrons for spectroscopy applications at IAP RAS. The gyrotron with frequency of 258 GHz and power of 100 watts is successfully used for spectroscopy experiments and 80-time rising of sensitivity has been obtained. The fundamental harmonic gyrotron with an internal mode converter is under development now. The predicted efficiency is 20% at power about 100 W and frequency of 263 GHz. The same helium-free 10-T magnet and electron optics will be used for design of a second harmonic tube with operating frequency of 520 GHz.
Keywords :
NMR spectroscopy; dynamic nuclear polarisation; gyrotrons; millimetre wave generation; submillimetre wave generation; DNP NMR spectroscopy; IAP RAS; dynamic nuclear polarization spectroscopy; electron optics; frequency 258 GHz; frequency 520 GHz; helium free magnet; power 100 W; second harmonic tube; subterahertz gyrotron; Nuclear magnetic resonance;
Conference_Titel :
Microwave & Telecommunication Technology (CriMiCo), 2014 24th International Crimean Conference
Conference_Location :
Sevastopol
Print_ISBN :
978-966-335-412-5
DOI :
10.1109/CRMICO.2014.6959359
