Critical separation between subcritical clusters of 4. 29 wt % /sup 235/U enriched UO/sub 2/ rods in water with fixed neutron poisons. Technical topical report
Technical Report
·
OSTI ID:6545968
Measurement data are presented for a series of criticality experiments on systems simulating fuel element shipping containers and fuel storage basins. The conditions investigated involve clusters of 4.29 wt% /sup 235/U enriched UO/sub 2/ fuel rods immersed in water. The number of rods required for criticality in a square lattice spacing (25.4 mm) near optimum neutron moderation and the critical separation between three subcritical clusters aligned in a row was determined. The effect on this critical separation between clusters was determined for the following neutron absorbers: 304L Steel with 0, 1.1, and 1.6 wt% boron; boral; copper with 0 and 1 wt% cadmium; cadmium; aluminum; and Zircaloy-4. Fuel rods are 12.649 mm in diameter, clad in 0.660 mm thick, 12.827 mm ID aluminum tubing and varied in length from 914 mm to 927 mm. The neutron absorbers are in the form of plates and are positioned between the fuel clusters such that no line of sight existed between the clusters. Measurements were made with each absorber plate located approximately midway between the fuel clusters and with the plates near the respective cell boundary of the center fuel cluster.
- Research Organization:
- Battelle Pacific Northwest Labs., Richland, WA (USA)
- OSTI ID:
- 6545968
- Report Number(s):
- PB-281345
- Country of Publication:
- United States
- Language:
- English
Similar Records
Critical separation between subcritical clusters of 4. 29 wt % /sup 235/U enriched UO/sub 2/ rods in water with fixed neutron poisons
Critical Separation Between Subcritical Clusters of 4.29 Wt% 235U Enriched UO2 Rods in Water with Fixed Neutron Poisons
Critical separation between subcritical clusters of 2. 35 wt 235/U enriched UO/ 2/ rods in water with fixed neutron poisons
Technical Report
·
Tue Feb 28 23:00:00 EST 1978
·
OSTI ID:6854523
Critical Separation Between Subcritical Clusters of 4.29 Wt% 235U Enriched UO2 Rods in Water with Fixed Neutron Poisons
Technical Report
·
Tue Feb 28 19:00:00 EST 1978
·
OSTI ID:6759250
Critical separation between subcritical clusters of 2. 35 wt 235/U enriched UO/ 2/ rods in water with fixed neutron poisons
Technical Report
·
Fri Sep 30 20:00:00 EDT 1977
·
OSTI ID:5357016
Related Subjects
42 ENGINEERING
420203* -- Engineering-- Handling Equipment & Procedures
ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
ALPHA DECAY RADIOISOTOPES
CASKS
CHALCOGENIDES
CONTAINERS
CRITICALITY
ELEMENTS
ENRICHED URANIUM
EVEN-ODD NUCLEI
FUEL ELEMENTS
FUEL RODS
HEAVY NUCLEI
HYDROGEN COMPOUNDS
ISOMERIC TRANSITION ISOTOPES
ISOTOPE ENRICHED MATERIALS
ISOTOPES
METALS
MINUTES LIVING RADIOISOTOPES
MODERATORS
NEUTRON ABSORBERS
NUCLEI
OXIDES
OXYGEN COMPOUNDS
RADIOISOTOPES
REACTOR COMPONENTS
SAFETY
SLIGHTLY ENRICHED URANIUM
STORAGE
TRANSPORT
URANIUM
URANIUM 235
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM ISOTOPES
URANIUM OXIDES
WATER
YEARS LIVING RADIOISOTOPES
420203* -- Engineering-- Handling Equipment & Procedures
ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
ALPHA DECAY RADIOISOTOPES
CASKS
CHALCOGENIDES
CONTAINERS
CRITICALITY
ELEMENTS
ENRICHED URANIUM
EVEN-ODD NUCLEI
FUEL ELEMENTS
FUEL RODS
HEAVY NUCLEI
HYDROGEN COMPOUNDS
ISOMERIC TRANSITION ISOTOPES
ISOTOPE ENRICHED MATERIALS
ISOTOPES
METALS
MINUTES LIVING RADIOISOTOPES
MODERATORS
NEUTRON ABSORBERS
NUCLEI
OXIDES
OXYGEN COMPOUNDS
RADIOISOTOPES
REACTOR COMPONENTS
SAFETY
SLIGHTLY ENRICHED URANIUM
STORAGE
TRANSPORT
URANIUM
URANIUM 235
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM ISOTOPES
URANIUM OXIDES
WATER
YEARS LIVING RADIOISOTOPES