Published September 1996 | Version v1
Journal article

Observation of Energy Gain at the BNL Inverse Free-Electron-Laser Accelerator

  • 1. Department of Applied Physics, Columbia University, New York, New York 10027 (United States)
  • 2. Physics Department, Yale University, New Haven, Connecticut 06511 (United States)
  • 3. Brookhaven National Laboratory, Upton, New York 11973 (United States)

Description

A 40MeV electron beam, using the inverse free-electron-laser interaction, has been accelerated by ΔE/E=2.5% over a distance of 0.47m. The electrons interact with a 1 endash 2GW CO2 laser beam bounded by a 2.8mm i.d.sapphire circular waveguide in the presence of a tapered wiggler with Bmax≅1T, and a period 2.89≤λw≤3.14cm. The experimental results of ΔE/E as a function of electron energy E, peak magnetic field Bw, and laser power Wl compare well with analytical and 1D numerical simulations and permit scaling to higher laser power and electron energy. copyright 1996 The American Physical Society

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
77
Journal Issue
13
Journal Page Range
p. 2690-2693.
ISSN
0031-9007
CODEN
PRLTAO