Improving the efficiency of microwave devices with a double output cavity

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Double output cavities have been used experimentally to increase the efficiency of high-power klystrons. We have used particle-in-cell simulations with the 2 + 1/2 dimensional code MASK to optimize the design of double output cavities for the lasertron and the 50 MW klystron under development at SLAC. We discuss design considerations for double output cavities (e.g., optimum choice of voltages and phases, efficiency, wall interception, breakdown). We describe how one calculates the cavity impedance matrix from the gap voltages and phases. Simulation results are compared to experience with the 150 MW klystron.

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Pages: 4

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Eppley, K.R.; Herrmannsfeldt, W.B. & Lee, T.G. May 1, 1986.

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Description

Double output cavities have been used experimentally to increase the efficiency of high-power klystrons. We have used particle-in-cell simulations with the 2 + 1/2 dimensional code MASK to optimize the design of double output cavities for the lasertron and the 50 MW klystron under development at SLAC. We discuss design considerations for double output cavities (e.g., optimum choice of voltages and phases, efficiency, wall interception, breakdown). We describe how one calculates the cavity impedance matrix from the gap voltages and phases. Simulation results are compared to experience with the 150 MW klystron.

Physical Description

Pages: 4

Notes

NTIS, PC A02/MF A01.

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  • Linear accelerator conference, Stanford, CA, USA, 2 Jun 1986

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  • Other: DE86015810
  • Report No.: SLAC-PUB-3984
  • Report No.: CONF-860629-53
  • Grant Number: AC03-76SF00515
  • Office of Scientific & Technical Information Report Number: 5340138
  • Archival Resource Key: ark:/67531/metadc1070603

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • May 1, 1986

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • May 29, 2018, 12:54 p.m.

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Eppley, K.R.; Herrmannsfeldt, W.B. & Lee, T.G. Improving the efficiency of microwave devices with a double output cavity, article, May 1, 1986; Menlo Park, California. (digital.library.unt.edu/ark:/67531/metadc1070603/: accessed September 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.