The Joint Institute for Nuclear Research (JINR in Dubna near Moscow) awarded the JINR Prize for 2020 to the team whose member is Dr. Nikita Medvedev (Laser Plasma Dept.); the team won the first prize in the category of the Applied Physics Research for an article entitled “Experimental study and multiscale modeling of latent tracks structure in radiation resistant dielectrics”.
This work is based on the series of papers devoted to understanding the ultrafast response of insulators to fast heavy ion irradiation. In a collaborative work among Institute of Physics and Institute of Plasma Physics of the CAS, JINR and Kurchatov Institute in Russia, and Nelson Mandela University in South Africa, a comprehensive simulation of the ion impacts was developed and validated against experiments. Combining state-of-the-art experimental observation of nanostructure of tracks induced by an ion impact with the advanced modelling, various effects and stages of electronic and atomic kinetics were investigated.
Figure 1. Track sizes and electronic energy losses of U ion vs. ion range (a) and energy (b). Vertical arrows indicate the positions of maxima in the respective curves.
8 Mar 2021