Actions for RADIUM PROCEDURE. Progress Report covering Period March 16 to April 15, 1960

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RADIUM PROCEDURE. Progress Report covering Period March 16 to April 15, 1960

Published
United States : [publisher not identified], 1960.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1960.
Physical Description
microopaque : positive ; 8 x 13 cm

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Summary
Development of a method for determination of radium isotopes is described in which reliability and rapidity are emphasized. A quaternary amine with low aqueous solubility in acid systems was investigated for use in radium ion exchange. Results showed that the chemical yield for a procedure using this material is a function of the size of aliquot mounted on a planchet. A method is also under investigation for determining Ra/sup 223/ in samples within 1 hour of the time at which a total Ra count was made. The method is based on the extraction of Pb/sup 211/ (Bi/sup 211/) from an aliquot of the concentrate produced by the radium procedure, and subsequently measuring the alpha decay of Bi/sup 211/ (Po/sup 211/). A diagram of the actinium decay series is included for illustration and methods of calculating results are described. An investigation is also underway to develop an accurate and fast thorium procedure. High molecular weight tertiary amines are being used to extract U from sulfuric acid solutions while primary amines are used to subsequently extract Th. Results so far obtained are encouraging. Data from analysis of samples containing known concentrations of Ra/sup 226/ and Th/sup 230/ are tabulated along with other data on Ra error as a function of Th concentration. Techniques are described which were used in analysis of U ores for Th and U. Procedures for Th and Ra by extraction into TTA as used at the Idaho Falls laboratory were tested. (For preceding period see TID-5656.) (J.R.D.)
Report Numbers
TID-5772
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
DOE contract number: AT(30-1)-2470
NSA number: NSA-14-013687
OSTI Identifier 4162005
Research organization: Ionics, Inc., Cambridge, Mass.
View MARC record | catkey: 42247364