Speaker
Description
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Beam-intercepting devices (BIDs) are components of particle accelerator facilities that partially or completely intercept the particle beam. BIDs can be distinguished in three categories, depending on their function: targets generate secondary particles; collimators and scrapers clean up the beam and protect the beam line from damage and/or activation; beam dumps absorb the beam after it has served its purpose and needs to be safely disposed of. In many cases, BIDs must withstand extremely high temperatures, stresses and activation. For this reason, the design of BIDs is a rather complex procedure involving knowledge of mechanical engineer, material science, particle-matter interaction, as well as Monte Carlo and Multiphysics simulations. After an introduction about BIDs and the challenges they pose, I will give an overview of the BIDs currently employed in the High Intensity Proton Accelerator (HIPA) facility at PSI as well as the one that are being designed for future upgrade programs. The last part of the lecture will be devoted to the handling of BIDs after they have been activated through the particle beam. "