We study the possibility to make a gyrotron generating a power of several kilowatts at a radiation frequency of 1 THz, which will be used in promising plasma studies. In 2008, a pulsed largeorbit gyrotron (LOG) generating a power of 0.4 kW at the third cyclotron harmonic and an operating frequency of 1 THz was implemented successfully. We update this device to create a plasma source of extreme ultraviolet radiation. Earlier experiments showed that this will require a power that is almost an order of magnitude higher. Updating a large-orbit gyrotron will make it possible to increase the generation power up to 4 kW by raising the power of the electron beams and reducing the fraction of the ohmic loss in the cavity. Such a gyrotron is designed to operate with an electron beam with a current of 1.2 A and an accelerating voltage of 100 kV in a pulsed magnetic field of 14 T.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 63, Nos. 5–6, pp. 393–402, March 2020.
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Kalynov, Y.K., Bandurkin, I.V., Zavolskiy, N.A. et al. High-Power Pulsed Terahertz-Wave Large-Orbit Gyrotron for a Promising Source of Extreme Ultraviolet Radiation. Radiophys Quantum El 63, 354–362 (2020). https://doi.org/10.1007/s11141-021-10060-4
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DOI: https://doi.org/10.1007/s11141-021-10060-4