Abstract

Background: Currently, some modern spectroscopic applications require sub-terahertz and terahertz continuous-wave electromagnetic radiation sources with power levels from 0.1 to 100 W. Gyrotron, a powerful high-frequency vacuum electronics device, is considered one of the promising sources for these aims.

Methods: Modification of the gyrotron design promotes the widespread use of these devices for DNP/NMR spectroscopy.

Results: Promising non-canonical concepts are presented, the features of which compare favorably with the classical gyrotron scheme.

Conclusion: The gyrotron concepts we considered allow us to master the terahertz range and develop a unique gyrotron installation for each scientific group, considering the specifics of their scientific research.

Keywords: NMR, DNP, spectroscopy, terahertz radiation, gyrotron, cyclotron frequency harmonics, cryomagnet, electron beams.