Inverse Compton scattering X/Gamma ray source, its physics and applications, Alghero, Italy, Sept.7-12, 2008.
Workshop on Laser and Plasma Accelerators, Portovenere (La Spezia), Italy, Sept. 29 - Oct.3, 2003.
Joint 6th ICFA Advanced & Novel Accelerators and 29th ICFA Advanced Beam Dynamics Workshop on Laser-Beam Interactions, Oxford, England, July 7 - 11, 2003.
Joint ICFA Advanced Accelerator and Beam Dynamics Workshop on "The Physics and Applications of High Brightness Electron Beams", Chia Laguna, Sardinia, Italy, July 1 - 6, 2002.
Workshop on 2nd Generation Laser & Plasma Accelerators, Presqu'ile de Giens, France, June 24 - 29, 2001.
Polarized RF Guns for Linear Colliders , Fermilab, April 18 - 20, 2001.
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