Molecular-dynamics calculations of energetic displacement cascades

Conference · Fri Aug 07 00:00:00 EDT 1981

OSTI ID:5922021

Guinan, M W; Kinney, J H

The results of fully dynamic computer simulations of collision cascades show an abrupt decrease in defect production efficiency beginning at energies about 10 times the minimum threshold energy in agreement with experimental results on resistivity damage rates at 4.2 K. A detailed analysis of the time development of a typical cascade reveals that this drop in efficiency is primarily due to recombination by defect transport during the cascade cooling phase. This transport is an order of magnitude larger than that predicted from equilibrium transport theory.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5922021
• Report Number(s): UCRL-85436; CONF-810831-67; ON: DE82003155; TRN: 82-001553
• Resource Relation: Conference: Fusion reactor materials meeting, Seattle, WA, USA, 9 Aug 1981
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
36 MATERIALS SCIENCE
MOLYBDENUM
ELECTRIC CONDUCTIVITY
THERMONUCLEAR REACTOR MATERIALS
DEFECTS
TUNGSTEN
COMPUTERIZED SIMULATION
EXPERIMENTAL DATA
MOLECULES
ULTRALOW TEMPERATURE
DATA
ELECTRICAL PROPERTIES
ELEMENTS
INFORMATION
MATERIALS
METALS
NUMERICAL DATA
PHYSICAL PROPERTIES
REFRACTORY METALS
SIMULATION
TRANSITION ELEMENTS
700209* - Fusion Power Plant Technology- Component Development & Materials Testing
360106 - Metals & Alloys- Radiation Effects