A STATISTICAL DETERMINATION OF THE REDUCED PROMPT NEUTRON GENERATION TIME,$lambda$//anti $beta$/, IN THE SPERT IV REACTOR

Technical Report · Thu Aug 01 00:00:00 EDT 1963

DOI:https://doi.org/10.2172/4660769· OSTI ID:4660769

Johnson, R. L.

An experimental determination of the reduced prompt neutron generation time LAMBDA / BETA in the Spert IV reactor utilizing a technique based on the statistical behavior of the neutron population is described. A mathematical model including the effects of delayed neutrons that relates the statistic variance-to-mean ratio of the count rate as a function of counting time'' to integral reactor parameters is derived. This model is used in conjunction with subcritical counting measurements from the Spert IV reactor to provide a value of LAMBDA / BETA that is in good agreement with an independent measurement obtained from super promptcritical excursion experiments. (auth)

• Research Organization: Phillips Petroleum Co. Atomic Energy Div., Idaho Falls, Idaho
• DOE Contract Number: AT(10-1)-205
• NSA Number: NSA-17-042396
• OSTI ID: 4660769
• Report Number(s): IDO-16903
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-63
• Country of Publication: United States
• Language: English

Related Subjects

REACTOR TECHNOLOGY
CRITICALITY
DELAYED NEUTRONS
EXCURSIONS
LIFETIME
PROMPT NEUTRONS
QUANTITATIVE ANALYSIS
REACTORS
RESEARCH REACTORS
SPERT-4
STATISTICS