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Computer Simulation of Radiation Effects in Zircon


EMSL Project ID
3534b

Abstract

Zircon is an extremely durable mineral proposed as a crystalline host for the disposal of high actinide waste forms. In order to minimize the release of actinides to the environment, it is essential to understand the production of defects by radiation, the subsequent migration of these defects, and basic diffusion mechanisms in zircon. In order to obtain such an understanding, molecular dynamics computer simulations employing nearly a million atoms are needed. These simulations will help in the interpretation of experimental results and in tailoring the waste isolation hosts to minimize actinide release.

Project Details

Project type
Exploratory Research
Start Date
2005-06-09
End Date
2007-06-27
Status
Closed

Team

Principal Investigator

Ram Devanathan
Institution
Pacific Northwest National Laboratory

Team Members

Haiyan Xiao
Institution
University of Electronic Science and Technology of China

Fei Gao
Institution
Pacific Northwest National Laboratory

Related Publications

Devanathan R, and WJ Weber. 2007. "Radiation Effects in a Model Ceramic for Nuclear Waste Disposal." JOM. The Journal of the Minerals, Metals and Materials Society 59(4):32-35.
Devanathan R, LR Corrales, WJ Weber, A Chartier, and C Meis. 2006. "Molecular Dynamics Simulation of Energetic Uranium Recoil Damage in Zircon." Molecular Simulation 32(12-13):1069-1077.