L subshell and total M shell x-ray production cross sections of Hg for protons of energy 0.7 - 2.9 MeV

Abstract

X-ray production cross sections of individual L lines, L and M total of Hg were measured for 0.7 to 2.9 MeV protons. The experimental results were compared with the theoretical predictions of the plane wave Born approximation (PWBA), ECPSSR and the semiempirical formula of Orlic. Good agreements were obtained for L1 at lower energies and L2 and L3 at higher energies with Orlic and ECPSSR predictions, respectively. The influence of using different databases for x-ray fluorescence yields and Coster-Kronig transition probabilities is also discussed. The results of this work were not compared to any other reported data, since no experimental cross sections for mercury were found in the literature.

Adiabatic L-shell ionization of Hg and Tl by proton and He ion impact

“…Our results, as well as the few existing data from other laboratories (Barros Leite et al 1977, Budnar et al 1984, Amirabadi et al 1997, are compared with the theoretical predictions by plotting the ratios between the experimental (σ exp ) and the predicted (σ th ) cross sections versus the relativistic reduced velocity parameter ξ R L . Data reported on production cross sections (Amirabadi et al 1997) have been converted to ionization cross sections by making use of the same procedure and the same parameters used for our own data, in order to compare with the other data treated in the same way. Leite et al (1977); •, Budnar et al (1984); , Amirabadi et al (1997).…”

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…”

5.96 keV Enerjide Hg, Pb and Bi Elementlerine ait Bileşiklerin Ortalama M Kabuğu Floresans Verimlerinin Araştırılması ve 70Yb ile 92U Arasındaki Elementlerin Ortalama M Kabuğu Floresans Verimlerinin Deneysel Olarak Hesaplanması

“…By using the impact of protons and nickel ions, M shell X-ray production crosssection of Pb was measured [15]. Also, M shell cross-sections of Hg [16], Au and Bi [17,18] were reported where the experimental parameters were measured in different energy ranges. L Xray production cross-sections for Zr, Nb, Mo, Ag, Cd, In, Sn and M X-ray production cross-sections for Au, Pb, Th, U [19] and for five elements in the range 81 Z  92 were measured at 5.96 keV energy [20].…”