K shell X-ray intensity ratios and vacancy transfer probabilities of Fe, Ag, and Te following electron capture decay

2014 ◽  
Vol 92 (11) ◽  
pp. 1301-1304 ◽  
Author(s):  
Linu George ◽  
S.B. Gudennavar ◽  
Daisy Joseph ◽  
S.G. Bubbly
Keyword(s):  
Electron Capture ◽  
Intensity Ratio ◽  
Exchange Interactions ◽  
Neutrino Emission ◽  
Recoil Effect ◽  
Electron Capture Decay ◽  
Simple Method ◽  
X Ray ◽  
Intensity Ratios ◽  
Experimental Values

The K shell X-ray photons of Fe, Ag, and Te following the electron capture decay of Co57, Cd109, and I125, respectively, were detected using Si(Li) detector coupled to PC-based 8k multichannel analyzer employing a simple method suggested earlier by our group. The calculated K shell X-ray intensity ratios and vacancy transfer probabilities for these elements are compared with the theoretical values predicted by Scofield and with others’ experimental values obtained via photoionization. It is found that the Κβ to Κα X-ray intensity ratio of Fe is lower by 4.0%, while that of Ag and Te are greater by 7.9% and 19.1%, respectively, from the theoretical values. These deviations may be attributed to the exchange interactions occurring between the 3p–3d shell electrons as well as the recoil effect of the nucleus due to neutrino emission.

K-shell X-ray intensity ratios and vacancy transfer probabilities of Pt, Au, and Pb by a simple method

2014 ◽  
Vol 119 (3) ◽  
pp. 392-397 ◽  
Author(s):  
L. F. M. Anand ◽  
S. B. Gudennavar ◽  
S. G. Bubbly ◽  
B. R. Kerur
Keyword(s):  
Simple Method ◽  
X Ray ◽  
Intensity Ratios

scholarly journals Intensity ratios for XDR/PDR identification

2015 ◽  
Vol 11 (S315) ◽  
Author(s):  
C.-E. Green ◽  
M. R. Cunningham ◽  
J. A. Green ◽  
J. R. Dawson ◽  
P. A. Jones ◽  
...  
Keyword(s):  
Black Holes ◽  
Star Formation ◽  
Active Galactic Nuclei ◽  
Intensity Ratio ◽  
Galactic Nuclei ◽  
Relative Influence ◽  
Calculation Methods ◽  
X Ray ◽  
Ratio Calculation ◽  
Intensity Ratios

AbstractThe intensity ratios of HCO+/HCN and HNC/HCN (1-0) reveal the relative influence of star formation and active galactic nuclei (AGN) or black holes on the circum-nuclear gas of a galaxy, allowing the identification of X-ray dominated regions (XDRs) and Photon-dominated regions (PDRs). It is not always clear in the literature how this intensity ratio calculation has been, or should be performed. This paper discusses ratio calculation methods for interferometric data.

K X-ray gamma-ray directional correlation in the decay of 114Inm with a sum-peak-coincidence scintillation spectrometer

1970 ◽  
Vol 48 (12) ◽  
pp. 1514-1517 ◽  
Author(s):  
D. S. Murty ◽  
K. V. Ramana Rao ◽  
P. Jagam ◽  
V. Lakshminarayana
Keyword(s):  
Electron Capture ◽  
Gamma Ray ◽  
Electron Capture Decay ◽  
X Ray

The evidence obtained for the existence of the K X-ray gamma-ray directional correlation by Perepelkin against the predictions of the theory of Dolginov evoked considerable interest in this field. The electron capture decay of 114Inm is used to advantage in the present investigation with a sum-peak-coincidence scintillation spectrometer. The results obtained are consistent with the theory of Dolginov.

scholarly journals Measurement of the intensity ratio of Auger and conversion electrons for the electron capture decay of125I

2018 ◽  
Vol 63 (6) ◽  
pp. 06NT04 ◽  
Author(s):  
M Alotiby ◽  
I Greguric ◽  
T Kibédi ◽  
B Q Lee ◽  
M Roberts ◽  
...  
Keyword(s):  
Electron Capture ◽  
Intensity Ratio ◽  
Electron Capture Decay ◽  
Conversion Electrons

High Resolution Spectroscopy of Dite Tokamak in the 10Å Region

1988 ◽  
Vol 102 ◽  
pp. 91-94
Author(s):  
J. Dunn ◽  
R. Barnsley ◽  
K.D. Evans ◽  
N.J. Peacock
Keyword(s):  
Fine Structure ◽  
High Resolution ◽  
Spectral Region ◽  
Intensity Ratio ◽  
High Resolution Spectroscopy ◽  
X Ray ◽  
Experimental Values

AbstractAn account is given of the X-Ray emission from the DITE tokamak in the spectral region 4Å–10Å measured by a Johann curved crystal photographic spectrometer. This high resolution instrument has been used for detailed line identifications eg. of L-shell transitions in the Fe spectrum at wavelengths ∼8Å and of the He-like ion spectra of Al, Si and Ar. The fine structure has been resolved for H-like Mg, Al and Si. Departures from the statistical value of 0.5 forβ, the intensity ratio of the Lyman-αdoublet, have been observed. Experimental values for the fine structure separation are presented for these medium Z metals.

Chemical effects on L X-ray intensity ratios of U and Th

2002 ◽  
Vol 80 (8) ◽  
pp. 925-930 ◽  
Author(s):  
A Küçükönder
Keyword(s):  
High Resolution ◽  
Gamma Rays ◽  
Detector System ◽  
X Ray ◽  
Chemical Effects ◽  
Intensity Ratios ◽  
Experimental Values

The chemical effects on the Lβ/Lα, Ll /Lα, and Lγ/Lα X-ray intensity ratios of U and Th were investigated. Vacancies were produced by heavily filtered 241Am gamma rays. A high-resolution Si(Li) detector system was used in the experiments. The experimental values are given with the theoretical values of the pure U and Th elements. PACS Nos.: 32.30Rj

Determination of K–L vacancy transfer probabilities of some 3d elements using synchrotron radiation

2015 ◽  
Vol 93 (7) ◽  
pp. 760-764 ◽  
Author(s):  
Santosh Mirji ◽  
A.S. Bennal ◽  
Krishnananda ◽  
N.M. Badiger ◽  
M.K. Tiwari ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Energy Resolution ◽  
Intensity Ratio ◽  
Fluorescence Yield ◽  
Silicon Drift Detector ◽  
X Ray ◽  
3D Elements ◽  
Experimental Values ◽  
Cu And Zn

The K–L total vacancy transfer probabilities (ηKL) of some 3d elements have been determined using Indus-2 synchrotron radiation. The targets, such as Cr, Cu, and Zn, are excited by using 6.5, 10, and 11 keV synchrotron radiation, respectively. The K X-ray photons are detected with a silicon drift detector, which has an energy resolution of 130 eV at 5.9 keV. By measuring the K-shell fluorescence yield and K X-ray intensity ratio, the K–L vacancy transfer probabilities have been determined. Measured values have been compared with the theoretical values and other experimental values.

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