Measurement of total and photoelectric cross sections of rare earth elements present in compounds for 123.6 keV and 145.4 keV photons

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

doi:10.1016/0969-806x(95)00408-p

Cited by 5 publications

(2 citation statements)

References 12 publications

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“…Nair et al [3] determined the total attenuation cross sections for several amino acids using 133 Ba photons in a narrow beam good geometry set-up and an HPGe detector. Jahagirdar et al [4] measured the total and photoelectric cross sections of rare earth elements in the range (58≤Z≤66) present in compounds at 123.6 keV and 145.4 keV photon energies using a NaI(Tl) spectrometer system in a 2Π geometrical configuration. Roy et al [5] determined the photoelectric cross sections of several atoms (41≤Z≤92) at 43 keV and 59.5 keV using the measured total attenuation coefficients.…”

Section: Introductionmentioning

confidence: 99%

Determination of K shell absorption parameters for some lanthanides using the X-ray attenuation method

2015

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The total attenuation cross section at the K edge, absorption jump ratio, jump factor, Davisson-Kirchner ratio and oscillator strength parameters for the K shell were determined by measuring the total attenuation cross sections around the K edge for Pr, Nd 2 O 3 and Sm. The measurements were performed in a secondary excitation geometry using the Kα 2 , Kα 1 , Kβ 1 and Kβ 2 X-rays (in the region from 31.817 to 55.293 keV) from different secondary source targets excited by the 59.54 keV γ-photons from an 241 Am annular source. It is the first time that the Davisson-Kirchner ratio values have been determined for present samples. The experimental results were compared with the theoretically calculated and other available experimental results.

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Section: Introductionmentioning

confidence: 99%

Determination of K shell absorption parameters for some lanthanides using the X-ray attenuation method

2015

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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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Determination of Kα,β excitation factors in thin target for selected elements from Y to Te at 59.54 keV excitation energy

Akman

Akdemir

Durak

et al. 2016

Applied Radiation and Isotopes

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Measurement of total and photoelectric cross sections of rare earth elements present in compounds for 123.6 keV and 145.4 keV photons

Cited by 5 publications

References 12 publications

Determination of K shell absorption parameters for some lanthanides using the X-ray attenuation method

Determination of K shell absorption parameters for some lanthanides using the X-ray attenuation method

Chemical effect on theKshell absorption parameters of some selected cerium compounds

Determination of Kα,β excitation factors in thin target for selected elements from Y to Te at 59.54 keV excitation energy

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