Simulating radiation damage cascades in graphite

Simulating radiation damage cascades in graphite

Molecular dynamics simulation is used to study radiation damage cascades in graphite. High statistical precision is obtained by sampling a wide energy range (100–2500 eV) and a large number of initial directions of the primary knock-on atom. Chemical bonding is described using the Environment Dependent Interaction Potential for carbon. Graphite is found to exhibit a radiation response distinct ...

Molecular dynamics simulation of radiation damage cascades in diamond

J. T. Buchan, M. Robinson, H. J. Christie, D. L. Roach, D. K. Ross, and N. A. Marks Department of Physics and Astronomy, Curtin University, Perth, Western Australia 6845, Australia Nanochemistry Research Institute, Curtin University, Perth, Western Australia 6845, Australia Physics and Materials Research Centre, School of Computing, Science and Engineering, University of Salford, Salford, Great...

Simulating brain damage.

In 1944 a young soldier suÝered a bullet wound to the head. He survived the war with a strange disability: although he could read and comprehend some words with ease, many others gave him trouble. He read the word antique as ÒvaseÓ and uncle as Ònephew.Ó The injury was devastating to the patient, G.R., but it provided invaluable information to researchers investigating the mechanisms by which t...

Radiation track and DNA damage

Nondestructive Evaluation of Graphite/Epoxy Composite Damage

Ultrasonic and acoustic emission techniques were used to monitor and evaluate material damage in a graphite/epoxy laminate containing a machined hole as an initial flaw and subjected to fully reversed spectrum fatigue loading at room temperature. It was found that the flaw growth progressed radially around the initial hole at a uniform rate during cycling at the lower stress levels. At the high...