Speaker
Description
Antiprotons are produced by colliding a pulsed 1.5*1013 proton per pulse proton beam of 26 GeV/c momentum from CERN Proton Synchrotron (PS) with a fixed target made of a dense and high-Z material: iridium. In the framework of the Extra Low Energy Antiproton Ring (ELENA) project, in order to address specific requirements for the new designs and operational procedures, a deep understanding of the target system and its behaviour with time has to be carried out. Part of this scope is achieved by the retrieve an iridium core rod (and optionally the Ti Gr5 window) inside one spent AD-target that was previously in function in the PS. This offer a unique occasion to investigate the long-term radiation damage induced by the impact of a high energetic proton beam with matter. The current state of the art of the post-mortem irradiation examination (PIE) through mechanical and metallurgical characterisation of the target is presented here. Due to the high dose rate and contamination risks of the target, PIEs are conduced together with Framatome GmbH in Erlangen.
