DIRECT MEASUREMENT OF REACTIVITY IN A SUBCRITICAL REACTOR USING A REPEATED PULSED NEUTRON SOURCE

Journal Article · Fri Nov 01 04:00:00 EST 1963 · Nucl. Energy

OSTI ID:4138085

Lewins, J

The kinetics of a reactor with a pulsed neutron source are considered, first for a single pulse and then for a steady repetition of pulses. It is shown that the ratio of the integrated density associated with the prompt behavior to that associated with the delayed behavior is the shutdown reactivity in dollars. An experiment to determine the reactivity of a sub-critical system directly, without the usual associated experiment or calculation is presented. The counts associated with the prompt pulse and the delayed neutron steady background in the cycle of a repetitively pulsed reactor are measured. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-18-003105
• OSTI ID: 4138085
• Journal Information: Nucl. Energy, Journal Name: Nucl. Energy
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BACKGROUND
DELAYED NEUTRONS
EXPONENTIAL PILES
MEASURED VALUES
NEUTRONS
PROMPT NEUTRONS
PULSES
QUANTITATIVE ANALYSIS
REACTIVITY
REACTOR TECHNOLOGY
SHUTDOWN
TRANSIENTS