Energy deposition effects on amorphous selenium,by low temperature neutron irradiation |
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| Authors: | E. Bonjour R. Calemczuk |
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| Affiliation: | Laboratoire de Cryophysique , Service des Basses Temperatures, Centre d'Etudes Nucleaires de Grenoble , BP 85 X, 38041, Grenoble, Cedex, France |
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| Abstract: | We have observed recently that neutron irradiation at low temperature can induce very strong changes in configurational disorder of glasses. This conclusion has been drawn from enthalpy change diagrams performed near Tg, by differential scanning calorimetry, on amorphous selenium. A progressive change was observed from a stabilized relaxation state to a highly quenched state as a function of the neutron dose. We explain these effects by a local heating process. The irradiation was done at low temperature (30 K) and fission and capture effects were shielded by enclosing samples in NB cells. |
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