Article ID Journal Published Year Pages File Type
1681960 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2013 4 Pages PDF
Abstract

We use Kinetic Monte Carlo (KMC) method to investigate the evolution of Helium-Vacancy clusters under different conditions with emphasizing the influence of system temperature. Our simulation results indicate that when initial helium concentration increases, the size and amount of the Helium-Vacancy cluster will increase dramatically. The Helium-Vacancy cluster will become larger accompanied with a decrease in its amount as the temperature increases. The results also indicate that irradiating He-contained sample produces less helium bubbles compared with other conditions, adding helium during irradiating the sample or adding helium atoms after the sample have been irradiated.

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Physical Sciences and Engineering Materials Science Surfaces, Coatings and Films
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