Total toK-shell photoelectric cross section ratios in Zr, Ag, Ta, and Th

Pramana ◽  
1977 ◽  
Vol 9 (4) ◽  
pp. 321-328 ◽  
Author(s):  
K Sivasankara Rao ◽  
V Radha Krishna Murty ◽  
K Parthasaradhi ◽  
J Rama Rao ◽  
V Lakshminarayana
Keyword(s):  
Cross Section ◽  
Photoelectric Cross Section

K-shell photoelectric cross-section measurements

1981 ◽  
Vol 23 (3) ◽  
pp. 1147-1151 ◽  
Author(s):  
S. K. Arora ◽  
K. L. Allawadhi ◽  
B. S. Sood
Keyword(s):  
Cross Section ◽  
Photoelectric Cross Section

Determination of LIII subshell photoelectric parameters of iridium

2017 ◽  
Vol 95 (5) ◽  
pp. 427-431
Author(s):  
Erhan Cengiz
Keyword(s):  
Form Factor ◽  
Cross Section ◽  
Narrow Beam ◽  
Attenuation Coefficients ◽  
X Ray ◽  
Beam Geometry ◽  
Mass Attenuation Coefficients ◽  
Photoelectric Cross Section ◽  
Mass Attenuation

The LIII subshell photoelectric cross section, jump ratio, jump factor, and Davisson–Kirchner ratio of iridium have been determined by mass attenuation coefficients. The measurements have been performed using the X-ray attenuation method in narrow beam geometry. The obtained results have been compared with the tabulated values of XCOM (Berger et al. XCOM: Photon cross section database (version 1.3). NIST. Available at http://physics.nist.gov/xcom . 2005) and FFAST (Chantler et al. X-ray form factor, attenuation and scattering tables (version 2.1). NIST. Available at http://physics.nist.gov/ffast . 2005).

Interpretation of wireline log and core data from a mid-Jurassic sand/shale sequence

Clay Minerals ◽  
1984 ◽  
Vol 19 (3) ◽  
pp. 483-505 ◽  
Author(s):  
R. C. A. Peveraro ◽  
K. J. Russell
Keyword(s):  
Bulk Density ◽  
Mineral Composition ◽  
Cross Section ◽  
Atomic Number ◽  
Clay Content ◽  
Single Factor ◽  
Reservoir Rocks ◽  
Wireline Logs ◽  
Photoelectric Cross Section ◽  
Source Of Information

AbstractInterpretation of downhole wireline logs is generally a major source of information used to build up a picture of the quality and distribution of reservoir rocks. Logging tools respond to a number of variables and comparison of a suite of different logs is usually required to isolate and identify the response due to a single factor, e.g. porosity or clay content. A new tool, the litho-density tool (LDT), has been used along with conventional logging tools in a mid-Jurassic sand/shale sequence. The LDT simultaneously measures Pe (effective photoelectric cross-section) and ρa (apparent bulk density). Pe is a function of atomic number which in turn reflects lithology or mineral composition. By using cross-plots derived from the LDT and other logs, patterns of mineral abundance are indicated.

Total-to-K-shell photoelectric cross-section ratios in some rare-earth and high-Z elements

1989 ◽  
Vol 67 (2-3) ◽  
pp. 139-142 ◽  
Author(s):  
S. Chandra Lingam ◽  
K. Suresh Babu ◽  
V. Prakash Kumar ◽  
D. V. Krishna Reddy
Keyword(s):  
Rare Earth ◽  
Cross Section ◽  
Atomic Number ◽  
Cross Sections ◽  
Cross Section Ratio ◽  
Section Ratio ◽  
Photoelectric Cross Section ◽  
Normal Transmission ◽  
Experimental Values ◽  
Good Agreement

The total photoelectric cross-sections in the elements gadolinium, dysprosium, erbium, lutetium, tantalum, tungsten, gold, and lead have been obtained by using the normal transmission experiments, and the results are reported. Using these total photoelectric cross sections, we have found the K-shell photoelectric cross sections, the K-jump ratios, and the total-to-K-shell photoelectric cross-section ratios at the K edges for the above elements. These values are compared with the available theoretical and experimental values. The results are in good agreement with the Storm and Israel results and the Scofield theoretical values, within the limits of experimental uncertainties. Furthermore, the variation of the total-to-K-shell photoelectric cross-section ratio with energy and atomic number is discussed.

The photoelectric cross section of gamma rays in the energy range 43 to 152 keV

1987 ◽  
Vol 17 (5) ◽  
pp. 1279-1284 ◽  
Author(s):  
F Machali ◽  
G G Al-Barakati ◽  
A A El-Sayed ◽  
W J Altaf
Keyword(s):  
Energy Range ◽  
Cross Section ◽  
Gamma Rays ◽  
Photoelectric Cross Section

scholarly journals Evolutions in Photoelectric Cross Section Calculations and Their Validation

2020 ◽  
Vol 67 (3) ◽  
pp. 492-501
Author(s):  
Tullio Basaglia ◽  
Maria Grazia Pia ◽  
Paolo Saracco
Keyword(s):  
Cross Section ◽  
Photoelectric Cross Section
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