Hardening and long-range stress effects in LiF caused by high-fluence irradiation with fast Bi, Ni, Kr, and S ions

Ilze Manika; Janis Maniks; Kurt Schwartz

doi:10.1117/12.639151

12 June 2006 Hardening and long-range stress effects in LiF caused by high-fluence irradiation with fast Bi, Ni, Kr, and S ions

Ilze Manika, Janis Maniks, Kurt Schwartz

Author Affiliations +

Proceedings Volume 5946, Optical Materials and Applications; 59460A (2006) https://doi.org/10.1117/12.639151
Event: Optical Materials and Applications, 2005, Tartu, Estonia

Abstract

The limits of the hardening, and the effects of ion-induced internal and long-range stresses in LiF crystals irradiated with Bi, Ni, Kr, and S ions, having a specific energy of the order of 10 MeV/u and the fluence up to 10¹³cm^-2, are studied. A considerable hardness increase, bending of the crystals, formation of dislocations in distant nonirradiated parts of the crystals, and initiation of fracturing under the high-fluence irradiation are observed. It is shown that the irradiation with heavy ions (Bi) gives rise to dislocations and work hardening mainly in the region adjacent to the irradiated one. In the case of lighter ions (Ni and S), the work hardening takes place also inside the irradiated zone. The heavy ions that cause a severe track core damage generally induce a higher stress.

Citation Download Citation

Ilze Manika, Janis Maniks, and Kurt Schwartz "Hardening and long-range stress effects in LiF caused by high-fluence irradiation with fast Bi, Ni, Kr, and S ions", Proc. SPIE 5946, Optical Materials and Applications, 59460A (12 June 2006); https://doi.org/10.1117/12.639151

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