Li (i=1,2,3) subshell X-ray production cross-sections and fluorescence yields for Ir, Pt, Pb and Bi

Singh, Pawan; Sharma, M. L.; Shahi, J.S.; Mehta, D.; Singh, Nirmal

doi:10.1016/s0168-583x(03)01277-1

Cited by 8 publications

(1 citation statement)

References 19 publications

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“…A review of the literature shows that a number of experimental studies on the L shell reported more than other shells, because of the prevalent irradiated energies could be excited for most elements. Numerous experiments have been carried out to measure L X-ray cross--sections using 241 Am radioactive source (at the excitation energy 59.543 keV) in different elements [1][2][3][4][5][6][7][8][9][10][11][12][13]. Some experimental studies were carried out using secondary target irradiated by 241 Am radioactive source [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Measurement of L Shell X-Ray Production and Average L Shell Fluorescence Yields for Some Heavy Elements at 123.6 keV

et al. 2008

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L2γ, L2η, L 1β and L1γ X-ray production cross--sections and L shell average fluorescence yields were measured for the elements from Re to U using excitation energy of 123.6 keV. Measurements were performed using an 57 Co annular radioactive source and a Si(Li) detector. The theoretical values of the cross-sections were calculated using theoretically tabulated values of subshell photoionization cross-sections; the Coster-Kronig transition probabilities were based on the Dirac-HartreeSlater theory and radiative emission rates. Experimental results were compared with the theoretically calculated values of L shell X-ray cross-sections. The present experimental results are in agreement with theoretical values.

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Section: Introductionmentioning

confidence: 99%

Measurement of L Shell X-Ray Production and Average L Shell Fluorescence Yields for Some Heavy Elements at 123.6 keV

et al. 2008

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L_i (i = 1, 2, 3) sub‐shell fluorescence yields for ₇₉Au, ₈₀Hg and ₈₁Tl

et al. 2004

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The L i (i = 1, 2, 3) sub-shell x-ray fluorescence yields .! i / for 79 Au, 80 Hg and 81 Tl were deduced from the measured cross-sections for the L i (i = 1, 2, 3) sub-shell x-rays following ionization by 59.54 keV g-rays .B L 1 < E inc < B K / and for the L 3 sub-shell x-rays following ionization by Rb K xrays .ionization threshold of the target element. An energy-dispersive x-ray fluorescence setup, involving photon sources consisting of a 241 Am annular source in the direct and secondary excitation modes along with RbCl secondary exciter and an Si(Li) detector, was used for the measurements. The measured ! 2 and ! 3 values exhibit good agreement with those based on the relativistic Dirac-Hartree-Slater (RDHS) calculations, while the ! 1 values are found to be higher by ∼25%. The present data indicate that the L 1 -L 3 Coster-Kronig yield f 13 based on the RDHS calculations are overestimated.

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Disparity in formulations used for fluorescent X-ray intensity measurements

Mittal

Gupta

2011

Applied Radiation and Isotopes

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Li (i=1,2,3) subshell X-ray production cross-sections and fluorescence yields for Ir, Pt, Pb and Bi

Cited by 8 publications

References 19 publications

Measurement of L Shell X-Ray Production and Average L Shell Fluorescence Yields for Some Heavy Elements at 123.6 keV

Measurement of L Shell X-Ray Production and Average L Shell Fluorescence Yields for Some Heavy Elements at 123.6 keV

L_i (i = 1, 2, 3) sub‐shell fluorescence yields for ₇₉Au, ₈₀Hg and ₈₁Tl

Disparity in formulations used for fluorescent X-ray intensity measurements

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Li (i=1,2,3) subshell X-ray production cross-sections and fluorescence yields for Ir, Pt, Pb and Bi

Cited by 8 publications

References 19 publications

Measurement of L Shell X-Ray Production and Average L Shell Fluorescence Yields for Some Heavy Elements at 123.6 keV

Measurement of L Shell X-Ray Production and Average L Shell Fluorescence Yields for Some Heavy Elements at 123.6 keV

Li (i = 1, 2, 3) sub‐shell fluorescence yields for 79Au, 80Hg and 81Tl

Disparity in formulations used for fluorescent X-ray intensity measurements

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L_i (i = 1, 2, 3) sub‐shell fluorescence yields for ₇₉Au, ₈₀Hg and ₈₁Tl