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Spinal is one of the candidate matrices for transmutation of radiotoxic actinides in nuclear reactors. During the transmutation process, large quantities of He are formed by alpha decay. The behaviour of He in spinal and its release upon heating are therefore of large interest. To obtain relevant information, single crystals of stoichometric spinal MgAl(2)O(4) were implanted with He-ions of three energies. The Rutherford backscattering/channeling technique was used to measure damage formation as a function of He-fluence, and samples irradiated to different fluence and heating rate, spalling of the implanted layer or release compatible with a diffusion process were observed.

Additional information

Bibliographic Reference: Paper presented: 10th International Conference on Radiation Effects, Jena (DE), 19-23rd July (1999)
Availability: Available from Public Relations and Publications Unit, Ispra (IT)
Record Number: 199911472 / Last updated on: 1999-10-08
Original language: en
Available languages: en