Cusp electron gun with modulation electrode for a THz gyro-amplifier

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Abstract

A terahertz gyrotron traveling wave amplifier (gyro-TWA) centered at 370GHz is under development for the electron paramagnetic resonance (EPR) imaging application. This paper reports the investigation of a triode-type cusp electron gun for the terahertz gyro-TWA. The simulation results showed that at the beam alpha (the ratio of transverse to axial velocity) center of 1.07, an optimal alpha spread of ∼ 10\% was achieved, when it was operated at a beam voltage of 50 kV and a beam current of 0.35 A.

Original languageEnglish
Title of host publication44th International Conference on Infrared, Millimeter, and Terahertz Waves
Place of PublicationPiscataway, NJ
PublisherIEEE
Number of pages2
ISBN (Electronic)9781538682852
DOIs
Publication statusE-pub ahead of print - 21 Oct 2019
Event44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019 - Paris, France
Duration: 1 Sep 20196 Sep 2019

Conference

Conference44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019
CountryFrance
CityParis
Period1/09/196/09/19

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Keywords

  • gyro-amplifier
  • cusp electron gun
  • cusp gun
  • THz
  • modulation
  • gyro-TWA
  • gyro-TWT

Cite this

Zhang, L., Donaldson, C. R., He, W., Phelps, A. D. R., & Cross, A. W. (2019). Cusp electron gun with modulation electrode for a THz gyro-amplifier. In 44th International Conference on Infrared, Millimeter, and Terahertz Waves [8874517] Piscataway, NJ: IEEE. https://doi.org/10.1109/IRMMW-THz.2019.8874517