Reference critical experiments. Progress report, April 1, 1977--June 30, 1977
Criticality measurements on plastic-reflected arrays of uranyl nitrate solution cylinders and similar measurements in a single minimally-reflected 50-cm-dia tank were performed, completing the experimental phase of Task 4. All of the Task 4 data are summarized, and the best corrected values for solution properties, cylinder dimensions, and critical height are given. Additional calculations to determine driver sizes for low-enriched oxide critical arrays with H/U = 1.5 have been performed, as well as calculations to determine H/U values required for undriven critical arrays. The method to be used for measuring H/U during the course of the experimental program is described, and preliminary results on achieving homogenous oxide-water mixtures are discussed. The fabrication of equipment for the experiments is nearly complete, and preliminary testing is underway. About 40% of the oxide has been pressed into briquettes.
- Research Organization:
- Atomics International Div., Golden, CO (USA). Rocky Flats Plant
- DOE Contract Number:
- EY-76-C-04-3533
- OSTI ID:
- 7289534
- Report Number(s):
- RFP-NUREG-2690
- Country of Publication:
- United States
- Language:
- English
Similar Records
Reference critical experiments. Progress report, October 1, 1976--December 31, 1976
Reference critical experiments. Progress report, July 1, 1977--September 30, 1977
Related Subjects
420203* -- Engineering-- Handling Equipment & Procedures
ACTINIDE COMPOUNDS
ACTINIDES
AQUEOUS SOLUTIONS
CRITICALITY
DISPERSIONS
ELEMENTS
ENRICHED URANIUM
HIGHLY ENRICHED URANIUM
ISOTOPE ENRICHED MATERIALS
METALS
MIXTURES
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
SAFETY
SOLUTIONS
URANIUM
URANIUM COMPOUNDS
URANYL COMPOUNDS
URANYL NITRATES