PROGRAM FOR THE DEVELOPMENT OF PLUTONIUM RECYCLE FOR USE IN LIGHT WATER MODERATED REACTORS. Quarterly Report No. 10, July 1-September 30, 1963

Technical Report · Tue Oct 15 04:00:00 EDT 1963

OSTI ID:4124974

Robkin, M A

The densitometry procedure (for measurement of alpha autoradiographs of fuel pellets) was modified to eliminate the need for a second emulsion. The existence of a problem of latent image fading and non-reciprocity of the highresolution emulsion was recognized. A tentative procedure was worked out to correct these emulsion difficulties. The number of hot spots per pellet has not changed appreciably. The largest spot seen was irregular with an estimated volume equivalent to that of a sphere of 35 mil diameter with a PuO/sub 2/ concentration of 60%. Applying the same scale factor between logged exposure and Ce-- Cs analysis of the first VBWR fuel sample, a corrected exposure of 4416 Mwd/ t was obtained. Further debugging of EPITHERMOS, the epithermal extension of the BNL THERMOS, code, is in progress. A flux wire exposure is being prepared to map the thermal neutron spectrum in the neighborhood of the test pins in the program fuel element. (auth)

• Research Organization: General Electric Co. Vallecitos Atomic Lab., San Jose, Calif.
• NSA Number: NSA-18-004762
• OSTI ID: 4124974
• Report Number(s): GEAP-4385; EURAEC-886
• Country of Publication: United States
• Language: English

Related Subjects

ACTIVATION
ALPHA PARTICLES
BURNOUT
BURNUP
CERIUM
CESIUM
COMPUTERS
CONFIGURATION
DISTRIBUTION
EFFICIENCY
EMULSIONS
EPITHERMAL NEUTRONS
ERRORS
FAILURES
FUEL ELEMENTS
IRRADIATION
MATERIALS TESTING
MEASURED VALUES
NEUTRON FLUX
PELLETS
PLUTONIUM
PLUTONIUM OXIDES
POWER PLANTS
PROGRAMMING
RADIOAUTOGRAPHY
REACTOR CORE
REACTOR TECHNOLOGY
REPROCESSING
SPECTRA
SPHERES
SURFACES
THERMAL NEUTRONS
THERMOS-CODE
WATER MODERATOR
WIRES
ZONES