Structural response of the EADF target beam window to beam interruptions: transient thermo-mechanical computation

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Data
1999
Autori
Aragonese, Cosimo
Maciocco, Luca
Bellucci, Valter
Buono, Stefano
Fotia, Giorgio
Moreau, Vincent
Siddi, Giuliana
Sorrentino, Luca
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Abstract
The operability of a high power proton beam target in an Accelerator Driven System (ADS) is strictly connected to the structural integrity of the beam window, which is undoubtedly the most delicate component in such devices, being exposed to the combined effects of high intensity proton and neutron irradiation, liquid metal corrosion and high thermal stresses induced by the interaction with the beam. It has also recently been highlighted that beam trips may frequently occur in current high power accelerators [1]. Clearly, the definition of the requirements of future accelerators depends on the behaviour of the window under such conditions. For this purpose a numerical study of typical transients has been carried out on the 600 MeV proton beam target that drives the 80 MW Demonstration Facility of the Energy Amplifier proposed by C. Rubbia, [2] presently under development in Italy by Ansaldo, CRS4, ENEA and INFN [3].
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Keywords
accelerator driven system , energy amplifier demonstration facility (EADF) , beam target
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