THO4AB01
STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
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THO4AB01 |
Material Response to High-Power Beams | |
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| The main issue for the materials used in the target systems (targets, beam windows, beam dumps, the pipes for contained liquid/powder jets, etc.) is the magnitude and the rate of change of deposited energy density. As the beam power increases, and the beam pulse length decreases, the estimate of material strength and corresponding lifetime based on simple, quasi-static equations is no longer accurate. In these cases the materials are tested dynamically and they behave differently than under quasi-static loading. The overview of the challenges on the road to address this problem will be presented. An account will be given of the constitutive models that offer insight into the deformation mechanisms and their possible application in estimating the lifetime of the materials used in the high power target systems. Special attention will be paid to the lessons learned at the current spallation neutron sources and preparation for the next generation of the high power spallation neutron sources. | ||
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Slides THO4AB01 [7.139 MB] | |