Observation of coherent and self-amplified spontaneous emission with the clio free-electron laser

R. Prazeres, J.M. Ortega, F. Glotin, D.A. Jaroszynski

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have produced and analysed the 'Coherent Spontaneous Emission' (CSE) and the 'Self-Amplified Spontaneous Emission' (SASE) emitted by a relativistic electron beam passing through an undulator. In this spectral range, the two phenomena are both very noisy and very sensitive to the electron bunch shape. As a consequence, it is difficult to distinguish one from the other, at least when SASE is restricted to the beginning of the build-up regime. We present new measurements, showing how these two regimes differ in their spectral evolution.
Original languageEnglish
Pages (from-to)474-479
Number of pages5
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume407
Issue number1-3
DOIs
Publication statusPublished - 21 Apr 1998

Keywords

  • spontaneous emission
  • electronic beam
  • undulator

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