PROGRESS REPORT ON THE STUDY OF IRRADIATED THORIUM

Technical Report · Wed Aug 28 04:00:00 EDT 1957

OSTI ID:4309522

Nisle, R G; Fast, E

The results of improved reactivfty measurements on nineteen MTR irradiated RD-1 slugs are correlated with chemical-mass spectrometer analysis results on two of these RD-1 slugs, and with delayed neutron counts. A correlation also is made between reactivity and delayed neutron counts for fifty- four slugs irradiated in the Savannah River reactor. The results indicate that the reactivity-chemical analysis correlation provides the best non-destructive means for estimating the uranium233 content of the irradiated thorium slugs. The U/sup 233/ content of the RD-1 slugs is estimated by this method to range between 2 and 8 gs that of the Savannah River slugs is estimated to range between 1 and 3 g. Given a sufficient number of RD-1 slugs, it is estimated that the minimum U/ sup 233/ content ought to bo about 15 g per slug in order that a satisfactory exponential pile may be built. Similarly, the U/sup 233/ content of the Savannah River slugs ought to be increased to about 10 g. (auth)

• Research Organization: Phillips Petroleum Co. Atomic Energy Div., Idaho Falls, Idaho
• DOE Contract Number: AT(10-1)-205
• NSA Number: NSA-12-009685
• OSTI ID: 4309522
• Report Number(s): IDO-16402
• Country of Publication: United States
• Language: English

Related Subjects

CHEMICAL REACTIONS
CHEMISTRY
MASS SPECTROMETERS
MEASURED VALUES
MTR
QUALITATIVE ANALYSIS
QUANTITY RATIO
RADIATION EFFECTS
REACTIVITY
RODS
SAVANNAH RIVER
THORIUM