POLARIZED POSITRON 2011

This volume is a collection of the contributions to the 6th Annual Workshop on Polarized Positron held in China. It provides updated information on polarized positron source R&D efforts for future high energy linear colliders and other research activities related to the polarized positron studies.The topics covered include: positron beams for linear colliders, but not limited to it, with the main items listed below:Polarized gamma ray generation;High degree polarized positron generation from Compton scattering both ring and linac based;High degree polarized positron generation from undulator radiation;Stacking and accumulation of the polarized beam from Compton regime;Polarized beam transport, control and acceleration;Channelling radiation and applications;Physics applications of polarized positrons;Various high intensity positron sources (include conventional);For other future colliders (SuperB, for example);Positron generation target issues;Physics applications of high quality X-rays and gamma-rays;Polarimetry at the e+ source;The positron capture section and the photon collimation;Review the activities of the “ILC–CLIC e+ generation” working group for all schemes;Status of the CDR for CLIC and TDR for ILC;Polarized electron sources;