December 31, 2001
Conference Paper

A Comparison of the NRT Displacement Model and Primary Damage Formation Observed in Molecular Dynamics Cascade Simulations, ASTM STP 1398, 2001.

Abstract

The method of molecular dynamics has been used to simulate atomic displacement cascades in iron with energies up to 50 KeV at energies relevant to fast neutron irradiation. The energy of the MD primary damage parameters has been compared with values predicted by the standard NRT model and spectrum-averaged values have been obtained. The effect of the neutron specturm on point defect survival is relatively weak, supporting the use of the standard NRT model as a damage correlation parameter. However, the spectrum may have a significant effect on the point defect cluster size distributions.

Revised: April 26, 2004 | Published: December 31, 2001

Citation

Stoller R.E., and L.R. Greenwood. 2001. A Comparison of the NRT Displacement Model and Primary Damage Formation Observed in Molecular Dynamics Cascade Simulations, ASTM STP 1398, 2001. In International symposium on reactor dosimetry; rediation metrology and assessment. 10th -- 1999 Sep: Osaka, Japan, edited by Williams, J. G., p. 633-640. West Conshohocken, Pennsylvania:American Society for Testing and Materials. PNNL-SA-32903.