REACTOR TECHNOLOGY QUARTERLY REPORT NO. 7. PHYSICS

Technical Report · Mon Dec 01 00:00:00 EST 1958

OSTI ID:4272067

Reactor Theory. A generalized criterion for xenon instability and flux tilting during xenon override are discussed. An analysis is made of epithermal capture effects in control rod evaluation. The absorption area of black control rods in media of arbitrary absorption is determined. Work is reported on the transport and Boltzmann equations. Escape probabilities for anisotropic scattering are discussed. The slowing-down kernel for delayed neutron groups was calculated. The theory of pulsed neutrons in multiplying media is discussed. The influence of europium and plutonium absorbers on reactor parameters was determined. Burnable Poisons. Dysprosium depletion studies and burnup calculations for unshielded europium and dysprosium chains are reported. Depletion of poisons involving isotopic chains is discussed. Cross Sections. Neutron capture, epithermal absorptions, and inelastic scattering parameters in zirconium are discussed. Isotopic abundances and cross sections for boron are reported. Experimental Physics. Studies of the depend ence of oxygen activation on the presence of inelastic scattering materials are presented. A pulsed neutron reactivity measurement and a measurement of the effective delayed neutron fraction by the substitution method are reported. Three separate lattices were investigated in a heterogeneity study. Mathematical Theory and Methods. A mathematical theory of neutron diffusion is presented, and the techniques used in the CURE program are described. The REM, TRIXY, BOX, and cross section codes are described. (For preceding period see KAPL-2000-3.) (W.D.M.)

• Research Organization: Knolls Atomic Power Lab., Schenectady, N.Y.
• DOE Contract Number: W-31-109-ENG-52
• NSA Number: NSA-13-005909
• OSTI ID: 4272067
• Report Number(s): KAPL-2000-4
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-59
• Country of Publication: United States
• Language: English

Related Subjects

REACTORS
ABSORPTION
ACTIVATION
BORON
BURNUP
C-CODES
CAPTURE
COMPUTERS
CONTROL
CONTROL ELEMENTS
CRITICAL ASSEMBLIES
CROSS SECTIONS
DELAYED NEUTRONS
DYSPROSIUM
EPITHERMAL NEUTRONS
EQUATIONS
EUROPIUM
GROUP THEORY
INELASTIC SCATTERING
ISOTOPES
MEASURED VALUES
MULTIPLICATION FACTORS
NEUTRON FLUX
NEUTRON SOURCES
NEUTRONS
NUMERICALS
OXYGEN
PLUTONIUM
POISONING
PROGRAMMING
QUANTITY RATIO
REACTIVITY
RESONANCE ESCAPE PROBABILITY
RODS
SCATTERING
SHUTDOWN
SLOWDOWN
STABILITY
STARTUP
TRANSPORT THEORY
XENON
ZIRCONIUM