Laser and Particle Beams

Research Article

Inverse Compton backscattering source driven by the multi-10 TW laser installed at Daresbury

G. Priebea1 c1, D. Laundya1, M.A. Macdonalda1, G.P. Diakuna1, S.P. Jamisona3, L.B. Jonesa1a3, D.J. Holdera1a3, S.L. Smitha1a3, P.J. Phillipsa4, B.D. Fella1, B. Sheehya8, N. Naumovaa9, I.V. Sokolova11, S. Ter-Avetisyana10, K. Spohra12, G.A. Kraffta13, J.B. Rosenzweiga14, U. Schramma6, F. Grünera7, G.J. Hirsta5, J. Colliera5, S. Chattopadhyaya2 and E.A. Seddona1

a1 Science and Technology Facilities Council, Daresbury Laboratory, Cheshire, United Kingdom

a2 Cockcroft Institute, Daresbury Science and Innovation Campus, Warrington, United Kingdom

a3 Accelerator Science and Technology Centre, Daresbury Laboratory, Cheshire, United Kingdom

a4 University of Dundee, Division of Electronic Engineering and Physics, Dundee, United Kingdom

a5 STFC Rutherford Appleton Laboratory, Chilton, Didcot, United Kingdom

a6 Forschungszentrum Dresden-Rossendorf, Dresden, Germany

a7 Max-Planck-Institut für Quantenoptik, Garching, Germany

a8 Sheehy Scientific Consulting, Wading River, New York

a9 Laboratoire d'Optique Appliquee, Chemin de la Huniere, Palaiseau, France

a10 School of Mathematics and Physics, Queen's University Belfast, Belfast, United Kingdom

a11 Space Physics Research Laboratory, University of Michigan, Ann Arbor, Michigan

a12 Department of Electronic Engineering and Physics, University of Paisley, Glasgow, United Kingdom

a13 Thomas Jefferson National Accelerator Facility, Jefferson Avenue, Newport News, Virginia

a14 University of California at Los Angeles, Department of Physics and Astronomy, Los Angeles, California


Inverse Compton scattering is a promising method to implement a high brightness, ultra-short, energy tunable X-ray source at accelerator facilities. We have developed an inverse Compton backscattering X-ray source driven by the multi-10 TW laser installed at Daresbury. Hard X-rays, with spectral peaks ranging from 15 to 30 keV, depending on the scattering geometry, will be generated through the interaction of laser pulses with electron bunches delivered by the energy recovery linac machine, initially known as energy recovery linac prototype and subsequently renamed accelerators and lasers in combined experiments. X-ray pulses containing 9 × 107 photons per pulse will be created from head-on collisions, with a pulse duration comparable to the incoming electron bunch length. For transverse collisions 8 × 106 photons per pulse will be generated, where the laser pulse transit time defines the X-ray pulse duration. The peak spectral brightness is predicted to be ~1021 photons/(s mm2 mrad2 0.1% Δλ/λ).

(Received May 01 2008)

(Accepted August 03 2008)


  • ALICE;
  • Compton scattering;
  • Compton synchrotron radiation;
  • Energy recovery linac;
  • ERLP;
  • Laser Compton scattering;
  • Laser synchrotron radiation;
  • Thomson scattering;
  • Ultra-short X-ray pulses;
  • X-ray source


c1 Address correspondence and reprint requests to: G. Priebe, STFC, Daresbury Laboratory, Daresbury, Warrington, Cheshire, WA4 4AD, UK. E-mail: