CONTROL WORTH OF B$sub 4$C RODS

Technical Report · Wed Aug 30 04:00:00 EDT 1961

OSTI ID:4817847

Pomraning, G C

An analytic model was developed for transforming a linear array of cylindrical control elements into an equivalent slab which has the same worth. The model was applied to a simple cell using a multigroup code. For a strong 1/v absorber in high concentration, such as B/sub 4/C rods, it was found that the standard three-group scheme was not sufficient. It was necessary to break up the epithermal group into three groups, resulting in a five-group calculation. It appeared that the ratio of total worth to thermal worth as calculated is slightly higher than would be expected from experiment. (auth)

• Research Organization: General Electric Co. Atomic Power Equipment Dept., San Jose, Calif.
• NSA Number: NSA-16-002676
• OSTI ID: 4817847
• Report Number(s): GEAP-3800
• Country of Publication: United States
• Language: English

Related Subjects

ABSORPTION
BORON CARBIDES
CONFIGURATION
CONTROL
CONTROL ELEMENTS
CROSS SECTIONS
CYLINDERS
EFFICIENCY
ENERGY
ENERGY RANGE
EPITHERMAL NEUTRONS
EQUATIONS
ERRORS
FAST NEUTRONS
GROUP THEORY
MEASURED VALUES
NEUTRON FLUX
NUMERICALS
PLATES
PROGRAMMING
REACTIVITY
REACTOR CORE
REACTOR TECHNOLOGY
REACTORS
RESONANCE NEUTRONS
RODS
SHUTDOWN
STANDARDS
THERMAL NEUTRONS
VARIATIONS
ZONES