Path to 100 fs multi-MeV gamma rays from extremely brilliant Compton sources

Abstract

Tunable quasi-monoenergetic MeV gamma rays of 100 fs have never been produced. Extremely brilliant Compton sources (EBCSs) can produce tunable quasi-monoenergetic gamma rays at MeV energies, but typically have picosecond pulse timescales. We present here how the pulse duration can be moved to ~100 fs at MeV energies using EBCSs.