Direct measurement of total and photoelectric cross sections of medium and high Z elements in the range 48 ⩽ Z ⩽ 83 present in compounds for 123.6 keV photons

Jahagirdar, H.A.; Hanumaiah, B.; Thontadarya, S.R.

doi:10.1016/0969-8043(93)90031-5

Cited by 12 publications

(1 citation statement)

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“…The K shell photoelectric cross section is happened when the incident photon energy is greater than the K shell absorption energy. The photoelectric cross sections were obtained experimentally and theoretically by many authors at different incident photon energies [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Chemical effect on theKshell absorption parameters of some selected cerium compounds

2016

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In this study, the photoelectric cross section values of Ce, CeCl 3 .7H 2 O, Ce 2 (SO 4 ) 3 , Ce(OH) 4 and Ce 2 O 3 samples were measured in the energy range from 31.82 keV up to 51.70 keV by adopting in narrow beam geometry. Using these photoelectric cross sections, the K shell photoelectric cross sections at the K-edge, the K shell absorption jump ratios and jump factors, the Davisson-Kirchner ratios and K shell oscillator strength values were estimated experimentally. The measured parameters were compared with the theoretical calculated values. It is observed that the K shell photoelectric cross section at the K-edge and K shell oscillator strength values of an element are affected by the chemical environment of material while the K shell absorption jump ratio, K shell absorption jump factor and Davisson-Kirchner ratio are not affected by the chemical environment of material for the present samples. To the best of our knowledge, the chemical effects on the Davisson-Kirchner ratio and K shell oscillator strength have not been discussed for any element by now.

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