A novel THz-band double-beam gyrotron for high-field DNP-NMR spectroscopy

Toshitaka Idehara; Mikhail Glyavin; Alexei Kuleshov; Svilen Sabchevski; Vladimir Manuilov; Vladislav Zaslavsky; Irina Zotova; Anton Sedov

doi:10.1063/1.4997994

A novel THz-band double-beam gyrotron for high-field DNP-NMR spectroscopy

Rev Sci Instrum. 2017 Sep;88(9):094708. doi: 10.1063/1.4997994.

Authors

Toshitaka Idehara¹, Mikhail Glyavin¹, Alexei Kuleshov¹, Svilen Sabchevski¹, Vladimir Manuilov², Vladislav Zaslavsky², Irina Zotova², Anton Sedov²

Affiliations

¹ Research Center for Development of Far-Infrared Region, University of Fukui, Fukui 910-8507, Japan.
² Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod 603950, Russia.

PMID: 28964246
DOI: 10.1063/1.4997994

Abstract

We present the first experimental results of the study on a novel second harmonic THz-band double-beam gyrotron. The tube has demonstrated a stable single-mode operation with output parameters that are appropriate for the next-generation 1.2 GHz dynamic nuclear polarization-nuclear magnetic resonance spectroscopy. Besides the design mode (TE_8,5), a series of other fundamental and second harmonic modes have been excited. This makes the new gyrotron a versatile radiation source, which can be used also in other applications of the high-power science and technologies.