CONTROL ROD CALCULATIONS FOR DETERMINTION OF REACTIVITY AN POWER DISTRIBUTION

Journal Article · Tue Apr 01 04:00:00 EST 1958 · Nuclear Sci. and Eng.

OSTI ID:4328464

Greebler, P

Thermal and epithermal absorption of neutrons by a cylindrical control rod are computed using two-group diffusion theory and assuming a flat source distribution for the epithermal group. Hurwitz-Roe area rule concepts are modied to take into account the nonthermal absorption by the rod and are extended to include rods that are not black.'' The effect of the control rod on the neutron economy is averaged over a cylindrical cell surrounding the rod and is expressed in terms of two-group absorption cross sections. Control rod power perturbations in a reactor are calculated from the two-group flux distributions in the cell containing the centered control rod. (auth)

• Research Organization: General Electric Co., San Jose, Calif.
• NSA Number: NSA-12-009464
• OSTI ID: 4328464
• Journal Information: Nuclear Sci. and Eng., Journal Name: Nuclear Sci. and Eng. Vol. Vol: 3
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
CONTROL ELEMENTS
CROSS SECTIONS
CYLINDERS
DIFFUSION
DISTRIBUTION
ENERGY LEVELS
EPITHERMAL NEUTRONS
GROUP THEORY
HURWITZ EFFECT
NEUTRON SOURCES
NEUTRONS
NUCLEAR MODELS
PHYSICS
POWER
REACTORS
RESONANCE
RODS
TRANSPORT THEORY
VARIATIONS
ZONES