Wall-Plug Efficiencies of FEL Amplifiers and Oscillators Employing Energy Recovery Linacs

Abstract

In a high average power FEL, the wall-plug efficiency is of critical importance in determining the size, complexity, and cost of the overall system. The wall-plug efficiency for the FEL oscillator and amplifier (uniform and tapered wiggler) are obtained and compared. In general, we find that the wall-plug efficiency for the tapered wiggler FEL amplifier is more than a factor of two greater than that of the oscillator. For typical MW class FEL parameters, we find that the wall-plug efficiency for the oscillator is in the range of 5-10%. The wall-plug efficiency for the uniform wiggler amplifier is found to be 5-10%, and for the tapered wiggler amplifier, the wall-plug efficiency is 20-25%.

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Document Details

Document Type
Technical Report
Publication Date
Jun 06, 2007
Accession Number
ADA471897

Entities

People

  • Bahman Hafizi
  • Ilan Ben-zvi
  • Joseph R. Peñano
  • Phillip A. Sprangle

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Department Of Defense
  • Efficiency
  • Electron Beams
  • Electron Energy
  • Electrons
  • Energy
  • Free Electron Lasers
  • Free Electrons
  • Gain
  • High Gain
  • Information Operations
  • Military Research
  • Oscillators
  • Radiation
  • Recovery
  • Synchrotron Radiation

Fields of Study

  • Physics

Readers

  • Pulsed Power and Plasma Physics.