Initial performance of Los Alamos Advanced Free Electron Laser

D. C. Nguyen, R. H. Austin, K. C.D. Chan, C. Fortgang, W. J.D. Johnson, J. Goldstein, S. M. Gierman, J. Kinross-Wright, S. H. Kong, K. L. Meier, J. G. Plato, S. J. Russell, R. L. Sheffield, B. A. Sherwood, C. A. Timmer, R. W. Warren, M. E. Weber

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


The Los Alamos compact Advanced Free Electron Laser (AFEL) has lased at 4.7 and 5.2 μm with a 1-cm period wiggler and a high-brightness electron beam at 16.8 and 15.8 MeV, respectively. The measured electron beam normalized emittance is 1.3 π mm mrad at a peak current of 100 A, corresponding to a beam brightness greater than 2 × 1012 A/m2rad2. Initial results indicate that the AFEL small signal gain is ∼ 8% at 0.3 nC (30 A peak). The maximum output energy is 7 mJ over a 2-μs macropulse. The AFEL performance can be significantly enhanced by improvements in the rf and drive laser stability.

Original languageEnglish (US)
Pages (from-to)29-33
Number of pages5
JournalNuclear Inst. and Methods in Physics Research, A
Issue number1-3
StatePublished - Mar 1 1994
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation


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