Statistical Investigations on the Extent of Convergence or Divergence of Some Electronic Stopping Power Programs with Experimental Data

Abstract

A comparative comparison among the experimental electronic stopping power with some common program data for proton, Helium, and Boron ions with different targets are graphically achieved. For certain specific energy ranges the impact of various programs is investigated by using two statistical tests. The tests are Chi square goodness of fit and standard deviation computed from the mean normalized difference. It is found that for the certain ion-target combinations, these programs with its different data given are relatively close or far away to match the experimental data. By using those tests for ion-target combinations we determine within given accuracy the best agreement among programs and experimental data.

Keywords: Electronic Stopping Power databases, proton, Helium ion, Boron ion, Chi square of goodness of fit test, standard deviation test.