Measurements of L x-ray intensity ratios for 51Sb at incident photon energies across its Li(i=1-3) edge energies

2021 ◽  
Author(s):  
Sandeep Kaur ◽  
Vibha Ayri ◽  
Anil Kumar ◽  
M. Czyzycki ◽  
A. G. Karydas ◽  
...  



2021 ◽  
Author(s):  
Vibha Ayri ◽  
Sandeep Kaur ◽  
Anil Kumar ◽  
M. Czyzycki ◽  
A. G. Karydas ◽  
...  


2005 ◽  
Vol 83 (9) ◽  
pp. 951-955
Author(s):  
Ö Söğüt ◽  
E Büyükkasap ◽  
A Küçükönder

Lα/Lι X-ray intensity ratios of La2O3, CeO2, Sm, Eu, Ho, Er, YbO2, Hf, Ta, W, Re, Pt, Au, HgO, Tl, Pb, Bi, ThO2, and U have been measured using the 59.5 keV incident photon energy. The LX-rays emitted from the samples were counted using a Si(Li) detector with a resolution 155 eV at 5.96 keV. PACS No.: 32.30.Rj



Author(s):  
E. A. Kenik ◽  
J. Bentley

Cliff and Lorimer (1) have proposed a simple approach to thin foil x-ray analy sis based on the ratio of x-ray peak intensities. However, there are several experimental pitfalls which must be recognized in obtaining the desired x-ray intensities. Undesirable x-ray induced fluorescence of the specimen can result from various mechanisms and leads to x-ray intensities not characteristic of electron excitation and further results in incorrect intensity ratios.In measuring the x-ray intensity ratio for NiAl as a function of foil thickness, Zaluzec and Fraser (2) found the ratio was not constant for thicknesses where absorption could be neglected. They demonstrated that this effect originated from x-ray induced fluorescence by blocking the beam with lead foil. The primary x-rays arise in the illumination system and result in varying intensity ratios and a finite x-ray spectrum even when the specimen is not intercepting the electron beam, an ‘in-hole’ spectrum. We have developed a second technique for detecting x-ray induced fluorescence based on the magnitude of the ‘in-hole’ spectrum with different filament emission currents and condenser apertures.



2014 ◽  
Vol 92 (11) ◽  
pp. 1489-1493 ◽  
Author(s):  
P.V. Sreevidya ◽  
S.B. Gudennavar ◽  
Daisy Joseph ◽  
S.G. Bubbly

K shell X-rays of barium and thallium following internal conversion decay in Cs137 and Hg203, respectively, were detected using a Si(Li) X-ray detector coupled to PC-based 8k multichannel analyser employing the method suggested earlier by our group. The K shell X-ray intensity ratios and vacancy transfer probabilities for thallium and barium were calculated. The obtained results are compared with theoretical, semiempirical, and others’ experimental results obtained via photoionization as well as decay processes. The effects of beta decay and internal conversion on X-ray emission probabilities are discussed.



1993 ◽  
Vol 47 (6) ◽  
pp. 765-768 ◽  
Author(s):  
D V Rao ◽  
G E Gigante ◽  
R Cesareo


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


Author(s):  
C.-E. Green ◽  
M. R. Cunningham ◽  
J. A. Green ◽  
J. R. Dawson ◽  
P. A. Jones ◽  
...  

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.



Sign in / Sign up

Export Citation Format

Share Document