Experimental cross sections for L-shell x-ray production and ionization by protons

• An updated database is presented, increasing by 94% the earlier pre-1993 database.
• The update has 40% more data from the pre-1993 period, absent in prior compilations.
• The growth and possible saturation in the number of data is illustrated.
• Ionization cross sections are reconverted to x-ray production cross sections.
• Elements and ion energies are identified where measurements are still necessary.

Tables of compiled cross sections list data for production of individual line and total L x-rays as well as for ionization of L subshells and the total L shell. The present cumulative compilation covers some six decades of measurements on targets from 10Ne to 95Am bombarded by protons ranging from 10 keV to 1 GeV. It includes data published in the period 1954–1992 from tables published in this journal, cross sections that were not reported in those tables, and new data from works published after 1992. Existing empirical, semiempirical, and theoretical analyses based on, and relative to, the pre-1993 database are reviewed. The experimental details are summarized for pre-1993 articles that were not referenced in previous compilations and, continuing the practice of these compilations, for each new publication. Covering the period 1954–December 2012, the present tabulation collects (not counting 2519 new data for Lβ1,3,4, Lβ2,15,Lγ1, Lγ2,3, and Lγ4,4′ x ray production) circa 15 500 experimental cross sections and enlarges the database from the previously published tables by 94%.