Speaker
Dr
Kevin Dupraz
(CNRS / LAL)
Description
Compact high flux x-ray sources can be obtained thanks to Laser-electron beam Compton scattering [1]. Some Compton x-ray sources and related R&D activities are presently under development. Starting from the Lyncean commercial fully operational small and compact electron ring [2] other projects aiming to reach higher x ray energy, higher flux or higher compactness have been launched worldwide, e.g.: Smartlight [3], STAR [4], ThomX [5] and TTX[6]. Whereas Smartlight, Star and TTX are based on LINAC technologies, ThomX is an electron ring of 50MeV-70MeV (a similar project TTX2 in under design study in China [7]).
In this presentation we shall concentrate on two topics. The status and expected performances of the ThomX machine will first be given. Issues and limits of the related laser system will also be discussed. Second, a possible upgrade of the STAR project making use of an optimization of the recently demonstrated burst regime of optical resonators [8] will be described. Optimization of the burst mode will be explained together with an estimate of x ray flux for such LINAC based Compton machine.
[1] Federici L, Giordano G, Matone G, et al. Backward Compton scattering of laser light against high-energy electrons: the LADON photon beam at Frascati. Il Nuovo Cimento B 59(1980)247–256
[2] Gradl et al., Scientific Reports 8, 6788 (2018)
[3] Luiten, O. J. (2016). KNAW-Agenda Grootschalige Onderzoeksfaciliteiten : Smart*Light: a Dutch table-top synchrotron light source. Amsterdam: Koninklijke Nederlandse Akademie van Wetenschappen (KNAW).
[4] A. Bacci et al., in Proceedings, 7th International Particle Accelerator Conference (IPAC 2016): Busan, Korea, May 8-13, 2016 (2016) p. TUPOW004.
[5] P. Walter et Al., C.R. Physique
[6] Tang C, Huang W, Li R, et al. Tsinghua Thomson scattering X-ray source. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2009, 608(1)
[7] H.S. Xu et al., Phys. Rev. STAB 17(2014) 070101
[8] K. Sakaue et Al., Review of Scientic Instruments 89, 023305 (2018)
Primary author
Dr
Kevin Dupraz
(CNRS / LAL)
Co-authors
Prof.
Luca Serafini
(INFN-Milan and University of Milan)
Prof.
fabian zomer
(Université paris sud / CNRS)
