Calculation Result of Migration Paths of Impurity Atoms (image) National Institutes of Natural Sciences Share Print E-Mail Caption The simulation result is based upon the dynamic Monte Carlo method4). Inside the base material of the tungsten, the atoms of which structure is close to the crystal are not displayed, and the tungsten atoms near the crystal grain boundary, which are of out-of-crystal deformation, are displayed as yellow and blue-colored points. The tracks of the impurity atoms moving inside (in this example, helium atoms) are displayed in white. So to make the impurities moving at high speed visible to the human eye, in order to indicate the tracks of the impurity atoms we have made all tracks resemble a tail with a fixed length, and we are seeking to express that movement of clouds as "averaged behavior." Credit Dr. Atsushi M. Ito Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.