Multi-Barrel Gyrotron for DNP/NMR Spectroscopy

We consider an example of implementation of a multi-barrel gyrotron. The simplest scheme of the multi-barrel gyrotron combines the advantages of both the canonical gyrotron and the gyrotron with the near-axis beam as the system of formation of helical electron beams and efficient selection of modes...

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Bibliographic Details
Published in:Radiophysics and quantum electronics 2023-06, Vol.66 (1), p.1-18
Main Authors: Zapevalov, V. E., Zuev, A. S., O.P.Plankin, Semenov, E. S.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Astroparticles
Cyclotron resonance devices
Electron beams
Electron guns
Electrons
Gyrofrequency
Hadrons
Heavy Ions
Lasers
Mathematical and Computational Physics
NMR spectroscopy
Nuclear Physics
Observations and Techniques
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Plasma physics
Quantum Optics
Theoretical
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Summary:We consider an example of implementation of a multi-barrel gyrotron. The simplest scheme of the multi-barrel gyrotron combines the advantages of both the canonical gyrotron and the gyrotron with the near-axis beam as the system of formation of helical electron beams and efficient selection of modes synchronous with high gyrofrequency harmonics, respectively, and is attractive from the viewpoint of applications that require moderate power levels. The design of a multi-barrel gyrotron with the possibility of simultaneous generation at frequencies of 263, 395, and 526 GHz is presented. Additionally, the possibility of generating the radiation at a frequency of 594 GHz is considered. Such frequencies are required for DNP/NMR facilities with proton Larmor frequencies of 400, 600, 800, and 900 MHz, respectively. Along with the conventional scheme of radiation output towards the collector, the features of the scheme with the radiation output toward the electron gun are considered.
ISSN:0033-8443
1573-9120
DOI:10.1007/s11141-023-10270-y