Exploration of REciprocity in the STopping of slow ions in matter with computer code REST

20.12.2018 – FLNR CAP Scientific Seminar “Exploration of REciprocity in the STopping of slow ions in matter with computer code REST”, 15-00, Flerov Lab Conference Hall.

Speakers: V.Kuzmin, FLNR, JINR

The principle of reciprocity in the electronic stopping of slow ions in matter gives researchers a clear and powerful criterion for testing of reliability of experimental data as well as stopping theories and models. Moreover, the principle allows to determine missing stopping cross section S(Y-> X) upon condition a credible S(X -> Y) is available.

A computer code REST has been developed to facilitate a cumbersome compilation, analysis and visualization of data from various data sets. This work presents a new extended version of the code.

Improvements include:

• all elements of Paul’s database can be analyzed;
• classic theories by Lindhard & Scharff and by Firsov are implemented;
• PASS stopping database can be examined;
• user’s database can be appended to Paul’s one;
• the code provides a statistical analysis of available data;
• up to four additional data sets can be included into plots;
• the current version of REST utilizes dynamically allocated objects to reduce computer memory usage.