Abstract
The purpose of this project is to support the realization of the BESSY Proposal 2010_1_91253 - "Angular distribution of photo-electrons of cooled and trapped Cesium after core ionization: the ultimate probe for relativistic effects".Few years ago, we developed at the Brazilian Synchrotron Laboratory (LNLS) a pioneering technique that combines laser cooling and trapping, Synchrotron photo-…