IMPROVEMENTS RELATING TO NUCLEAR REACTORS

Patent · Mon Jun 20 04:00:00 EDT 1960

OSTI ID:4820836

A liquid having a high thermal neutron absorption coefficient is so contained in a reservoir connected to a channel of relatively narrow cross section that a rise in temperature beyond a predetermined level during operation of the reactor causes an increase in the quantity of material in the channel and a resultant increase in the surface to volume ratio of said liquid; thnns causes an increase in absorption of thermal neutrons and thus a decrease in reactivity of the reactor. According to an embodiment, the neutron-absorbing liquid, e.g. mercury, is contained in a reservoir connected to a capillary tube channel after the fashion of a thermometer. The said channel, which together with the reservoir may be made of stainless steel, is sealed at the end remote from this reservoir. (NPO)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-006200
• OSTI ID: 4820836
• Report Number(s): FR 1237444
• Country of Publication: France
• Language: English

Related Subjects

ABSORPTION
CAPILLARIES
CONTROL
CROSS SECTIONS
EXPANSION
HIGH TEMPERATURE
LEVELS
LIQUIDS
MERCURY
NEUTRON FLUX
PATENT
PLANNING
REACTIVITY
REACTOR TECHNOLOGY
REACTORS
SEALS
STABILITY
STAINLESS STEELS
STORAGE
SURFACES
TEMPERATURE
THERMAL NEUTRONS
TRANSIENTS
TUBES
VARIATIONS
VESSELS
VOLUME