SHAPED BURNABLE POISON DEVELOPMENT PROGRAM UNDER THE EURATOM PROGRAM. Quarterly Progress Report, December 1, 1962-February 28, 1963

Technical Report · Wed Apr 10 04:00:00 EST 1963

DOI:https://doi.org/10.2172/4702971· OSTI ID:4702971

Nuclear cross section data for gadolinium, Gd/sup 155/, and Gd/sup 157/ were compiled. Average absorption cross sections were computed assuming Maxwellian thermal spectra for moderator temperatures from 70 to 600 deg F. Poison demand curves were computed for a boiling water reactor with an H/sub 2/O- to-UO/sub 2/ ratio of 2.6, U/sup 235/ enrichments from 1.8 to 3.8 wt%, zirconium or stainless steel as clad, and fuel depletions of 10,000 to 25,000 Mwd/t. Based on the above poison demand curves, poison lumps in the shape of cylinders are being investigated analytically. A calculational method is being developed for detailed depletion studies of cylinders. Gadolinia, alumina, and Al/sub 2/O/sub 3/- Gd/sub 2/O/sub 3/ rods wer e formed and sintered at temperatures to 2700 deg F, in an air atmosphere for two to six hours. Investigations of reaction between Gd/sub 2/O/sub 3/ and Al/sub 2/O/sub 3/ were begun. (auth)

• Research Organization: Allis-Chalmers Mfg. Co. Atomic Energy Div., Milwaukee
• NSA Number: NSA-17-024605
• OSTI ID: 4702971
• Report Number(s): ACNP-63012; EURAEC-628
• Country of Publication: United States
• Language: English

Related Subjects

ABSORPTION
AIR
ALUMINUM
ALUMINUM OXIDES
BOILING
BURNUP
CHEMICAL REACTIONS
CROSS SECTIONS
CYLINDERS
ENRICHMENT
FUEL CANS
GADOLINIUM
GADOLINIUM 155
GADOLINIUM 157
GADOLINIUM OXIDES
HIGH TEMPERATURE
POISONING
REACTOR TECHNOLOGY
REACTORS
RODS
SINTERING
SPECTRA
STAINLESS STEELS
TEMPERATURE
THERMAL NEUTRONS
URANIUM 235
URANIUM DIOXIDE
WATER MODERATOR
ZIRCONIUM