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THE STUDY OF INVERSE RADIOACTIVE TRACER TECHNIQUES AND APPLICATIONS OF RADIOACTIVE QUINOL CLATHRATES. Second Annual Report

Technical Report ·
OSTI ID:4069804
An investigation was made of chemical analyzers based on the technique of radioactive tracing. Reactions were studied which could lead to the evolution of a gaseous product which contains a radioactive atom. Correlations between counting rates and influent concentrations of reactant to be analyzed were then made. Efforts to develop a radiochemical tracing method for low concentrations of water in a gas stream utilizing a variety of systems are described. Compounds studied as potential tracers included lithium aluminum tritide, sodium amide, phosphorus pentachloride, and titanium trichloride. None of these systems were entirely satisfactory at water concentrations below 1000 cpm due to the "sealing- off" of salt surfaces by reaction products. The feasibility for radiochemical tracing of HCl, Cl/sub 2/, and O/sub 3/ was demonstrated using Kr>s8/sup > /inol clathrate coupled with NaClO/sub 2/. Strong emphasis was placed on the detection of ozone using Kr>s8/sup > /inol-clathrate, and application of the method to high altitude atmospheric analysis. The reaction is sensitive (< 1 ppb at NTP) and data are presented to establish feasibility and merit. Further applications of Kr>s8/sup > / quinol-clathrate were studied. The production of low energy x radiation using clathrates and suitable targets is shown to be feasible, practical, and desirable. Uses in radiography, x-ray analysis, therapy, and x- ray measurements are indicated. The preparation of luminous paints with clathrates was accomplished by conventional direct compounding and by an "in situ" technique. In the latter method the inclusion of the activity was made automatically and remotely in a final stage of fabrication. (auth)
Research Organization:
Tracerlab, Inc., Waltham, Mass.
NSA Number:
NSA-15-019696
OSTI ID:
4069804
Report Number(s):
NYO-2764
Country of Publication:
United States
Language:
English