DEVELOPMENT OF A CATION EXCHANGE RESIN WITH SCINTILLATING PROPERTIES. Final Report
A resin was synthesized which has the unique feature of possessing both ion exchange and scintillating properties. Cationic species of radioactive nuclides are readily adsorbed from aqueous solution in a manner similar to that of conventional ion exchange resins. Radioactive emanations from the captured nuclides result in the excitation of resin phosphors. The emitted light is of a wave length that effectively activates a photomultiplier tube of an S-11 or -13 response. Thus, radioactive isotopes can readily be counted by coupling the resin on which they are adsorbed to a photomultiplier tube and pulse counter. The resin was made by a suspension-type polymerization process as solid, spherical beads. The beads were made of polyvinyltoluene crosslinked with divinylbenzene and contained p-terphenyl and 1,4-bis-STA2-(5-phenyloxazolyl)! - benzene (POPOP) dissolved in solid solution. Ionizing sulfonic groups (-SO/sub 3/ H) were introduced on or near the surface of the beads by direct sulfonation of the aromatic nuclei. Exchange capacities in the range of 0.01 to 0.1 milliequivalents per gram of beads were obtained. Sr/sup 90/, Pu/sup 239/, and Po/sup 210/ were counted with over-all efficiencies of 50, 30, and 40% respectively, using a multichannel pulse-height analyzer. A counting efficiency of 12% was obtained for Ni/sup 63/ and 60% for Tl/sup 204/ using a liquid scintillation counter. (auth)
- Research Organization:
- Tracerlab. Div. of Lab. for Electronics, Inc., Richmond, Calif.
- NSA Number:
- NSA-16-030587
- OSTI ID:
- 4795042
- Report Number(s):
- NYO-9138
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AROMATICS
BENZENE
CATHODES
ENGINEERING AND EQUIPMENT
FREQUENCY
HETEROCYCLICS
ION EXCHANGE
IONS
ISOMERS
NICKEL 63
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXAZOLES
PHENYL RADICALS
PHOSPHORS
PHOTOMULTIPLIERS
PLUTONIUM 239
POLONIUM 210
POLYMERIZATION
POLYPHENYLS
POLYVINYLS
PULSE ANALYZERS
RADIOACTIVITY
RADIOISOTOPES
RESINS
SCINTILLATIONS
SOLID SOLUTIONS
STRONTIUM 90
SULFONIC ACIDS
TERPHENYL-PARA
THALLIUM 204
TOLUENE
VINYL RADICALS