scholarly journals Radionuclide activities in recent chondrite falls determined by gamma‐ray spectrometry: Implications for terrestrial age estimates

2019 ◽  
Vol 55 (1) ◽  
pp. 149-163
Author(s):  
Åke V. Rosén ◽  
Beda A. Hofmann ◽  
Moritz Sivers ◽  
Marc Schumann
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Spectrometry ◽  
Age Estimates ◽  
Terrestrial Age

Gamma-Ray Spectrometric Analysis of Some Trace Elements in the Human Articular Disc of the Mandible

1963 ◽  
Vol 03 (02) ◽  
pp. 175-182 ◽  
Author(s):  
Bo Bergman ◽  
Rune Söremark
Keyword(s):  
Trace Elements ◽  
Neutron Activation ◽  
Quantitative Data ◽  
Thermal Neutron Flux ◽  
Gamma Ray ◽  
Dry Weight ◽  
Gamma Ray Spectrometry ◽  
Spectrometric Analysis ◽  
Articular Disc ◽  
Group Separation

SummaryBy means of neutron activation and gamma-ray spectrometry the concentrations in the human mandibular articular disc of the following elements have been determined: Na, Mn, Cu, Zn, Rb, Sr, Cd, W, and Au. The discs were obtained at necropsy from seven men and nine women, ranging in age from 56 to 71 years.The activation was carried out in a thermal neutron flux of about 1.7 XlO12 neutrons × cm−2 × sec.−1 for about 20 hours. A chemical group separationwas performed before the gamma-ray spectrometry. Quantitative data based on the dry weight of the cartilage samples were obtained by comparing the photo-peak area of the identified elements with those of appropriate standards.

Gamma Ray Spectrometry Assay Results of 242Pu Samples at the Chemistry and Metallurgy Research Facility

2019 ◽  
Author(s):  
Steven Charles Myers ◽  
Ning Xu ◽  
Jung Ho Rim ◽  
Georgiana Marie Vigil
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Spectrometry ◽  
Research Facility

Inverting airborne gamma-ray spectrometry data of Maricá calibration range, Brazil

2019 ◽  
Author(s):  
Jessica Weihermann ◽  
Saulo Oliveira ◽  
Francisco Ferreira ◽  
Adalene Silva
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Spectrometry

The Effects of a Tropical rain Forest Cover on Airborne Gamma-Ray Spectrometry

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Enio B. Pereira ◽  
Daniel J.R. Nordemann
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Forest Cover ◽  
Gamma Ray ◽  
Gamma Ray Spectrometry

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