Comparison of proton and helium induced M subshell X-ray production cross sections with the ECUSAR theory

M subshell X-ray production cross sections have been measured for Mα12, Mβ1, Mγ, M2-N4 and M1-O23 transitions representing all five M subshells. These experimental cross sections have been compared with the ECUSAR theory of Lapicki and four parameter fits are given to the experiment to theory ratios covering the proton and helium ion energy range from 0.5 to 3 MeV on thin W, Au, Pb, Th and U targets.