Zobrazeno 1 - 10
of 21
pro vyhledávání: '"S. E. Glover"'
Autor:
S. E. Glover, Jon M. Schwantes, Evelyn M. Bond, Ernst I. Esch, J. L. Ullmann, Uwe Greife, R. C. Haight, John M. O'Donnell, D. J. Vieira, A. Alpizar-Vicente, J. B. Wilhelmy, J. M. Wouters, Todd Bredeweg, R. Hatarik, Rene Reifarth, Robert S. Rundberg, A. Kronenberg
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 241:176-179
The Detector for Advanced Neutron Capture Experiments (DANCE) at the Los Alamos National Laboratory (LANL) is designed as a high efficiency, highly segmented 4 π BaF2 detector for calorimetrically detecting gamma rays following a neutron capture. Co
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 263:301-306
In the analysis of biological samples with sub ng/g uranium concentrations, pre-concentration has been shown to improve the detection limit for the determination of uranium. Recovery corrected kinetic phosphorescence analysis (KPA) combines pre-conce
Publikováno v:
Radiochimica Acta. 92:671-675
Summary The distribution of actinides in a contaminated soil as a function of grain size was investigated by determining 239,240Pu, 241Am, and 238U after size fractionation. The soil was contaminated as the result of a fire at a nuclear missile site
Publikováno v:
Health Physics. 84:34-45
The USTUR has developed simple linear and multiple regression models for estimating skeletal actinide concentrations on the basis of bone samples collected at autopsies of non-whole body tissue donors. Bone samples usually collected include a clavicl
Publikováno v:
Radiation Protection Dosimetry. 97:161-168
The dissolution characteristics of 232 Th from ThO 2 in the lung have been determined in an in vitro study. Two types of ThO 2 were examined to determine if the age of the material had any effect; an aged high-fired ThO 2 that had its progeny in secu
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 248:509-515
The dissolution rates for 238U, 230Th, and 231Pa from 8 contaminated soils in simulated lung fluid were determined. The soil samples were provided by the US Army Corps of Engineers and were collected from various areas at their St. Louis, Missouri FU
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 248:449-452
The parameters for a sulfate based electrodeposition method were optimized for the preparation of Cm and Np alpha-spectrometry sources. Alpha-spectrometry requires the preparation of essentially massless sources to eliminate self-absorption of alpha-
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 248:487-491
Two typical methods used for the determination of uranium in human autopsy tissues are kinetic phosphorescence analysis (KPA) and alpha-spectrometry, both of which have significant limitations and advantages. KPA is limited because of the amount of s
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 248:247-253
There is a significant discrepancy in the reported values for the emission probability of the 186 keV gamma-ray resulting from the alpha decay of 226 Ra to 186 keV excited state of 222 Rn. Published values fall in the range of 3.28 to 3.59 gamma-rays
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 248:29-33
The determination of isotopic thorium by alpha spectrometric methods is a routine practice for bioassay and environmental measurement programs. Alpha-spectrometry has excellent detection limits (by mass) for all isotopes of thorium except 232Th due t