Double achromat solution with a dedicated collimation system for the MEBT-3 section of MYRRHA
Résumé
MINERVA (MYRRHA phase 1) aims at demonstrating the requirements related to the reliability and the fault tolerances of the MYRRHA accelerator-driven system (ADS) by the realization of a superconducting linac for 100 MeV, 4 mA proton beams. The reference scenario of injector reconfiguration and line switching has been defined [1, 2] with the maximal time for the procedure being 3 seconds. A universal tool for compensation of various failure scenarios in linacs has been developed [3]. The design and the performance of the Medium Energy Beam Transfer section (MEBT-3) of the accelerator are critical for the operation of the linac and the subsequent high energy beam lines towards the experimental facilities of MINERVA [4]. The purpose of the MEBT-3 is to fastswitch between the 16.4 MeV beams coming from the two injectors, thus to ensure a continuous injection of the proton beam into the main superconducting linac in case one of the injectors fails. The MEBT-3 was defined by beam dynamics calculations using TraceWin [5] by performing simulations with beam envelopes and with realistic particle distributions. * Work supported by the Belgian state,
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