THE USE OF ION-EXCHANGE MATERIAL IN PREPARING LOW-ACTIVITY RADIATION SOURCES

Journal Article · Wed Nov 01 04:00:00 EST 1961 · Atomnaya Energ.

OSTI ID:4820260

Zaitsev, B A; Grivkova, A I; Glazunov, M P

A sulfophenolformaldehyde cation exchange material KU--1G in the form of spheres 0.25 to 1.50 mm in diameter and in the form of film with polyethylene as a binding agent was used to prepare Cs/aup 137/ sources. The Cs/sup 137/ had a specific activity of 13 curies/g. After absorption from a 0.15 N solution of cesium chloride it was found that the resin had a specific activity of 9.8 curies/ g on adsorption from a neutral solution, and 15.1 curies/g on adsorption from 0.032 N NaOH. One bead of ion-exchange material 1.50 mm in diameter can hold 35.5 millicuries of Cs/sup 137/. The ionexchange membrane had a specific activity of 0.516 curies/cm/. The method can be used to form radiation sources of a definite shape with a minimum amount of fines as a by-product. At a total dose of 4.38 x l0/sup 23/ ev/gram, delivered to the organic ion-exchanger over a period of l80 days, it was found that 0.04 mm3 of gas is evolved per day (this amount of gas corresponds to 2.9% of the volume of the ion-exchanger per day). The amount of gas evolved could be reduced by a factor of about four by heating the ionexchanger at 400 f C for 6 hours, instead of at l70 f C, in order to remove water. The incorporation of l5 mg of palladium black in sources having a specific activity > l.2 curies/gram absorbed the hydrogen gas evolved, and eliminated the build-up of pressure in the source. (TTT)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-006674
• OSTI ID: 4820260
• Journal Information: Atomnaya Energ., Journal Name: Atomnaya Energ. Vol. Vol: 11
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ABSORPTION
ALDEHYDES
BINDERS
CESIUM 137
CESIUM CHLORIDES
FILMS
FORMIC ACID
GASES
HEATING
HYDROGEN
INDUSTRIAL APPLICATIONS OF ISOTOPES AND RADIATIONS
ION EXCHANGE MATERIALS
MEMBRANES
ORGANIC SULFUR COMPOUNDS
PALLADIUM
PHENOLS
POLYETHYLENES
PREPARATION
RADIATION SOURCES
RESINS
SODIUM HYDROXIDES
SOLUTIONS
SPHERES