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Positron lifetime study of molybdenum neutron-irradiated at various temperatures |
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| Authors: | LJ Cheng P Sen IK MacKenzie HE Kissinger |
| Institution: | Institute for the Study of Defects in Solids and Physics Department, SUNY/ALBANY, Albany, New York 12222, USA;Physics Department, University of Guelph Guelph, Ontario, Canada;Battelle Memorial Institute, Pacific Northwest Laboratory Richland, Washington 99352, USA |
| Abstract: | Positron Lifetime measurements reveal that neutron irradiation at 350 and 400°C can produce sub-electron microscopic voids in Mo. The results show that the lifetime in voids reaches a saturation value with increasing void size to a dimension less than 20 Å. It is suggested that the difference among known data for τ2 ? 450 ps can be attributed to differences in the metal-void interface and gaseous conditions within the void. |
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