control rod


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control rod

n
(General Physics) one of a number of rods or tubes containing a neutron absorber, such as boron, that can be inserted into or retracted from the core of a nuclear reactor in order to control its rate of reaction
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.control rod - a steel or aluminum rod that can be moved up or down to control the rate of the nuclear reaction
nuclear reactor, reactor - (physics) any of several kinds of apparatus that maintain and control a nuclear reaction for the production of energy or artificial elements
rod - a long thin implement made of metal or wood
Translations
barre de commande
References in periodicals archive ?
Nuclear reactors are designed to shut down automatically when there is a major safety issue, but this time, operators had already been monitoring the reactor as they detected a possible problem with the control rod and manually turned off the reactor when the control rod dropped," an official from the Korea Hydro & Nuclear Power Co.
The ministry reported in July that the project had completed research and had produced a mechanism for Generation II+ nuclear power plants, including performance and operation life tests, and that the project team was conducting tests on a control rod drive mechanism for Generation III, 1,700-megawatt nuclear power plants.
12, the utility shut down, entered containment and determined the leak was from an area located on one of the control rod drive mechanisms, the NRC reported.
To stop the nuclear reaction, control rods (3) are inserted into the reactor.
They enable control of thermal output from the reactor by precisely inserting the control rods into the reactor core during regular operation.
Two of the aircraft were lost in crashes during their Afghanistan duty, including one in December 2001 that was caused by an improperly installed control rod and another in July when a fuel nozzle malfunctioned.
has developed the Tap-Out Actuator, which is designed to control the rate of flow of molten metal from a gravity furnace by controlling the control rod in the furnace tap hole.
When you lift the control rod behind the faucet, a pivot rod pushes the stopper closed so the sink holds water.
This AD requires inspection of the small jam nut on the elevator tab control rods to detect inspection putty and to determine its condition; a torque check of the small and large jam nuts on the tab control rod, if necessary; and corrective actions as applicable.
The control rod is mounted in low-friction, slide bearing that are said to significantly extend life over conventional bearing assemblies, virtually eliminating wear.
The report covers the global nuclear power industry's development, its growth trajectory and the demand for control rod assemblies (CRAs) in the global nuclear market segmented by five regions and key countries.