Non-planar four-mirror optical cavity for high intensity gamma ray flux production by pulsed laser beam Compton scattering off GeV-electrons

作者：Bonis J; Chiche R; Cizeron R; Cohen M; Cormier E; Cornebise P; Delerue N^*; Flaminio R; Jehanno D; Labaye F; Lacroix M; Marie R; Mercier B; Michel C; Peinaud Y; Pinard L; Prevost C; Soskov V; Variola A; Zomer F

来源：Journal of Instrumentation, 2012, 7(01): P01017.

DOI：10.1088/1748-0221/7/01/P01017

• Instrumentation for particle accelerators and storage rings - high energy (linear accelerators, synchrotrons)
• Accelerator Applications

As part of the R%26D toward the production of high flux of polarised Gamma-rays we have designed and built a non-planar four-mirror optical cavity with a high finesse and operated it at a particle accelerator. We report on the main challenges of such cavity, such as the design of a suitable laser based on fiber technology, the mechanical difficulties of having a high tunability and a high mechanical stability in an accelerator environment and the active stabilization of such cavity by implementing a double feedback loop in a FPGA.

• 出版日期2012-1