ThomX: A high flux compact X ray source
1 LAL CNRS, Université Paris-Sud 11, Bâtiment 200, 91898 Orsay, France
2 Synchrotron SOLEIL, Saint-Aubin, France
3 ILE, École Polytechnique, CNRS, Palaiseau, France
In the field of application of X-rays, there is a strong need for high brightness, tunable beam. The synchrotron radiation sources meet this demand, but the access time is limited, and they are large and expensive facilities. In this framework, we develop a compact monochromatic high flux X-ray source. The principle lies in obtaining X-ray by Compton backscattering of photons by relativistic electrons. This facility is relatively compact (about 70m2) to be installed directly in a scientific laboratory, a hospital or an art museum. The backscattered photons are in the range of multi-keV energy, determined by the energy of the electrons and photons. Since there is a correlation between emission angle and energy of scattered photons, the spectral bandwidth of scattered photons can be controlled by simple collimation. The paper presents the ThomX X-ray source consisting of a 50 MeV small storage ring and a laser coupled to a high gain Fabry Perot cavity.
© Owned by the authors, published by EDP Sciences, 2011