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He W, Donaldson CR, Zhang L, et al. High power wideband gyrotron backward wave oscillator operating towards the terahertz region. Phys Rev Lett. 2013;110(16):165101doi: 10.1103/PhysRevLett.110.165101.
He, W., Donaldson, C. R., Zhang, L., Ronald, K., McElhinney, P., & Cross, A. W. (2013). High power wideband gyrotron backward wave oscillator operating towards the terahertz region. Physical review letters, 110(16), 165101. https://doi.org/10.1103/PhysRevLett.110.165101
He, W, et al. "High power wideband gyrotron backward wave oscillator operating towards the terahertz region." Physical review letters vol. 110,16 (2013): 165101. doi: https://doi.org/10.1103/PhysRevLett.110.165101
He W, Donaldson CR, Zhang L, Ronald K, McElhinney P, Cross AW. High power wideband gyrotron backward wave oscillator operating towards the terahertz region. Phys Rev Lett. 2013 Apr 19;110(16):165101. doi: 10.1103/PhysRevLett.110.165101. Epub 2013 Apr 15. PMID: 23679610.
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Phys Rev Lett. 2013 Apr 19;110(16):165101. doi: 10.1103/PhysRevLett.110.165101. Epub 2013 Apr 15.

High power wideband gyrotron backward wave oscillator operating towards the terahertz region.

Physical review letters

W He, C R Donaldson, L Zhang, K Ronald, P McElhinney, A W Cross

Affiliations

  1. Department of Physics, SUPA, University of Strathclyde, Glasgow, G4 0NG, United Kingdom.

PMID: 23679610 DOI: 10.1103/PhysRevLett.110.165101

Abstract

Experimental results are presented of the first successful gyrotron backward wave oscillator (gyro-BWO) with continuous frequency tuning near the low-terahertz region. A helically corrugated interaction region was used to allow efficient interaction over a wide frequency band at the second harmonic of the electron cyclotron frequency without parasitic output. The gyro-BWO generated a maximum output power of 12 kW when driven by a 40 kV, 1.5 A, annular-shaped large-orbit electron beam and achieved a frequency tuning band of 88-102.5 GHz by adjusting the cavity magnetic field. The performance of the gyro-BWO is consistent with 3D particle-in-cell numerical simulations.

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