Search Results

Advanced search parameters have been applied.
open access

THE EFFECT OF ENVIRONMENTAL TEMPERATURES ON THE RETENTION OF CESIUM$sup 137$ BY MICE

Description: Three groups of 12 mice each were maintained at environmental temperatures of 34, 22, and 5 deg C for a period of about 7 weeks after an intraperitoneal injection of Cs/sup 137/. Periodic assay of the activity in the whole body and excreta showed that as environmental temperature decreases the excretion of Cs/sup 137/ increases, probably as a result of the increased metabolic rates associated with low temperatures. (auth)
Date: January 1, 1962
Creator: Furchner, J.E. & Richmond, C.R.
Partner: UNT Libraries Government Documents Department
open access

MILKING SYSTEMS--STATUS OF THE ART

Description: A review is preserted of milking systems for separating a desired radioisotope from its parent and other contaminants. Milking systems are considered for the separation of the following radioisotopes: Zr/sup 95/ from Nb/ sup 95/, I/sup 132/ from Te/sup 132/, La/sup 140/, from Ba/sup 140/ Ba/sup 137/ from Cs/sup 137/ Y/sup 90 / from Sr/sup 90/ Tc/sup 99m/ from Mo/sup 99/, Ga/sup 68/, from Ge/sup 68/, Al/sup 28/ from Mg/sup 28/, etc. (D.L.C.)
Date: January 1, 1962
Creator: Greene, M.W.; Doering, R.F. & Hillman, M.
Partner: UNT Libraries Government Documents Department
open access

Cesium-137 index for nuclear materials content of coating waste

Description: Cs-137 has been chosen as a possible index of the plutonium and uranium in coating waste. This index is a stable ratio as long as the plutonium formation rate (Pu/MD) is stable. Calculations are presented for Purex and Redox. It is recommended that the Cs-137 index method be used for determining nuclear materials content in coating waste at both Purex and Redox; this will result in higher but more accurate statements of Pu, U losses in coating waste.
Date: February 1, 1962
Creator: Schneider, R. A. & Zimmer, W. H.
Partner: UNT Libraries Government Documents Department
open access

The Half-Life and Gamma-Ray Abundance of Cs-137

Description: The half life of cesium-137 was determined to be 29.2 plus or minus 0.3 years by an all mass spectrometric method. The abundance of the 662 Kev gamma- ray in the decay scheme was found to be 0.82 plus or minus 0.03 per beta disintegration. In the course of the work, the isotopic distribution of natural barium was determined with improved accuracy to be (72.11 plus or minus 0.06)% 138, (11.18 plus or minus 0.05)% 137, (7.77 plus or minus 0.02)% 136, (6.42 plus or minus 0.03)% 135, (2.33 plus or … more
Date: June 1962
Creator: Rider, B. F.; Peterson, J. P., Jr. & Ruiz, C. P.
Partner: UNT Libraries Government Documents Department
open access

Selected radioisotopes` concentrations in integrated reactor effluent water samples

Description: This document contains the results of weekly sampling of various isotope concentrations from effluent water at the 100 area at Hanford from July 1962 to February 1965. Compiled data in microcuries/milliliter are given. Each sampling records the concentrations of iodine-131, phosphorus-32, zinc-65, scandium-46, chromium-51, and cobalt-60. Records prior to October 8, 1962 also contain information on strontium-90, cesium-137, zirconium-95, ruthenium-103, ruthenium-106, and strontium-89. These last… more
Date: December 1, 1962
Creator: Jackson, P. O.
Partner: UNT Libraries Government Documents Department
open access

Chemical Processing Technology Quarterly Progress Report, July-September 1962

Description: Aqueous zirconium fuel processing studies, directed at adapting the hydrofluoric acid process to continuous dissolution-complexing in order to increase the capacity of the ICPP process, resulted in two successful approaches to the complexing-feed adjustment step. Continuous in-line adjustment (conversion of uranium(IV) to uranium(VI) necessary for extraction) was accomplished in one minute or less at approximately 90 deg C; surges of dissolver product from the operating dissolver up to 1.9 time… more
Date: December 28, 1962
Creator: Bower, J.R. ed.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen