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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/071/06/1301-1310

    • Keywords

       

      Backward wave oscillator; high power microwave generation; capacitor charging power supply; relativistic electron beam; Marx generator; high-voltage pulse technology.

    • Abstract

       

      In this paper, a high power relativistic backward wave oscillator (BWO) experiment is reported. A 230 keV, 2 kA, 150 ns relativistic electron beam is generated using a Marx generator. The beam is then injected into a hollow rippled wall metallic cylindrical tube that forms a slow wave structure. The beam is guided using an axial pulsed magnetic field having a peak value 1 T and duration 1 ms. The field is generated by the discharge of a capacitor bank into a solenoidal coil. A synchronization circuit ensures the generation of the electron beam at the instant when the axial magnetic field attains its peak value. The beam interacts with the SWS modes and generates microwaves due to Cherenkov interaction. Estimated power of 2 MW in TM 01 mode is observed.

    • Author Affiliations

       

      Yaduvendra Choyal1 Lalit Gupta1 Prasad Deshpande1 Krishna Prasad Maheshwari1 Kailash Chander Mittal2 Suresh Chand Bapna3

      1. School of Physics, Devi Ahilya Vishwavidyalaya, Indore 452 001, India
      2. Accelerator and Pulse Power Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
      3. D.C. Accelerator Laboratory, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India

    • Dates

       
      Published
      December 2008
      Manuscript received
      13 February 2008
      Manuscript revised
      22 May 2008
      Accepted
      17 June 2008

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