L sub-shell cross sections for proton impact on selected 4d transition elements

Abstract

L x-rays excited from thick elemental targets of Y, Zr, Nb, Mo, Rh, Pd, Ag and Sn by proton impact in the energy range 50–300 keV were measured with a high-resolution Si(Li) detector equipped with an ultra-thin window. The L sub-shell x-ray production cross sections were determined from a thick-target analysis of the x-ray yields. These were compared with the ECPSSR theory along with various atomic parameter databases and including modifications using the united-atom (UA) binding energy correction.

Updated database for L x‐ray production by protons and extraction of L‐subshell ionization cross sections from only Lγ and Lα + Lβ cross sections

“…The database used for this study originates with the data compiled in in Refs 1–3. With additional references 4–8 that were not cited in these compilations and the subsequently published data,9–32 a total of 29 papers was found, including several that presented the results only in graphical form 4–8. The graphs from these papers were digitized and the values extracted in tabular form, although a higher uncertainty in these values should be expected.…”

“… Number of L ‐subshell ionization and the individual x‐ray line cross sections as previously compiled1–3 and currently updated 4–32…”