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Poster communications

Design of a 3D coaxial multi-pass recirculator for laser beam - electron beam interactions

K. Dupraz 1 K. Cassou 2 N. Delerue 2 P. Fichot 2 F. Zomer 2
LAL - Laboratoire de l'Accélérateur Linéaire
Abstract : The Compton scattering process between a relativistic electron bunch and a high power laser pulse is still today the most efficient technique to generate high brilliance gamma ray beams. However, the main drawback of this physical process is its small cross-section which has to be compensated the use of a laser power at the limit of the existing technology to provide a high flux of gamma rays. In this presentation, we describe the optical design of the interaction point of a Compton gamma ray machine which has been proposed for the ELI-NP project. We have developed an optical system capable of recirculating 32 times a high energy pulsed laser beam. We fully modeled this apparatus using the Code V simulation software in order to perform tolerance studies. We obtain a low loss and aberration free system which provides a constant laser - electron beams crossing angle.
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Contributor : Sabine Starita <>
Submitted on : Monday, September 16, 2013 - 4:23:00 PM
Last modification on : Wednesday, September 16, 2020 - 5:43:28 PM


  • HAL Id : in2p3-00862435, version 1




K. Dupraz, K. Cassou, N. Delerue, P. Fichot, F. Zomer. Design of a 3D coaxial multi-pass recirculator for laser beam - electron beam interactions. 2013 UK Optical Design Meeting, Sep 2013, Harwell, United Kingdom. ⟨in2p3-00862435⟩



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