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Feb21-12, 11:06 AM
P: 242
I think the question might be about the low neutron capture rate at Zr, compared to some other structural materials? This is due to the fact - which ultimately is based on the quantum-mechanical properties of Zr nuclei - that the neutron reaction cross sections of Zr nuclei are small, i.e. they do not capture neutrons passing-by as eagerly as e.g. iron tends to.