LABORATORI NAZIONALI DI LEGNARO
MCNPX is a Monte Carlo radiation transport code designed to track particles in their interaction with matter, over broad ranges of energy. It is used in many engineering applications to determine the effects of nuclear particles on different components. One of the utilizations is the calculation of nuclear damage to materials. Whenever a particle cross the crystalline net of a material, it is likely to deposit some of its kinetic energy, or electrical whether the particle is charged, on it. That can lead to significant changes in the properties of the material, and when not observed thoroughly, can eventually ruin it. Radiation environment created by the proton beam pinging on uranium-carbide targets as in SPES Front-End occurs, can be unbearable for some materials, markedly the non-metal ones. As many plastics, rubbers and lubricants compound manifold elements, there is a high risk for them to lose their properties and end up failing. Hence, damage studies should be performed to asses whether those components can withstand under such hazard atmosphere. MCNPX constitutes a valuable tool to determine the energy deposited within materials, by any kind of beam and particle produced, and any intricate geometry. That way, and compared to energy dose limits ascertained in different published experiments, it is feasible to clinch their aptitude to work into the Front-End machine. Some necessary basis of the code will be introduced all along this speech, and methodology applied to Front-End will be detailed. Jobs carried out last year in the frame of the collaboration between SPES project and ESS-Bilbao will be presented, and discussion about the results obtained will be formulated.

DATA: 24-09-2015

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