Control rod - Wikipedia
Control rods are used in nuclear reactors to control the rate of fission of the nuclear fuel – uranium or plutonium. Their compositions include chemical elements such as boron, cadmium, silver, hafnium, or indium, that are capable of absorbing …
Control Rods in Nuclear Reactors
Control rods are an important technology for maintaining the desired state of fission reactions within a nuclear reactor. They constitute a real-time control of the fission process, which is crucial for both keeping the fission chain reaction active and preventing it from accelerating beyond control. The nuclear fission chain reaction is the ...
Control Rods | Description, Types & Uses | nuclear-power.com
Control rods are rods, plates, or tubes containing a neutron absorbing material (material with high absorption cross-section for thermal neutron) such as boron, hafnium, cadmium, etc., used to control the power of a nuclear reactor.
Control rod - Energy Education
A control rod is a device that is used to absorb neutrons so that the nuclear chain reaction taking place within the reactor core can be slowed down or stopped completely by inserting the rods further, or accelerated by removing them slightly.
What are nuclear reactor control rods? - Nuclear energy
Dec 10, 2009 · The control rods are one of the mechanisms to regulate the state of a nuclear reactor. The rods are often the most crucial element in a rapid shutdown of the reactor (the so-called emergency stop or scram). In pressurized water reactors, the rods hang in the reactor and work as a safety system.
NUCLEAR 101: How Does a Nuclear Reactor Work?
Aug 2, 2023 · Control rods can then be inserted into the reactor core to reduce the reaction rate or withdrawn to increase it. The heat created by fission turns the water into steam, which spins a turbine to produce carbon-free electricity.
What are control rods and their purpose in a nuclear reactor?
Sep 5, 2023 · Control rods are neutron-absorbing materials that are inserted or removed from the reactor core to control the rate of the nuclear reaction. They are made from materials with a high affinity for neutrons, such as cadmium, boron, hafnium, or silver-indium-cadmium alloy.
The control rod drive system (CRDS) consists of the control rods and related mechanical components that provide the means for mechanical movement. For the U.S. EPR, the CRDS consists of the control rod drive mechanisms (CRDM) and rod cluster control assemblies (RCCA).
Reactor Power Control - Nuclear Power for Everybody
Control rods are rods, plates, or tubes containing a neutron absorbing material (material with high absorption cross-section for thermal neutron) such as boron, hafnium, cadmium, etc., used to control the power of a nuclear reactor.
Control Rods for Fission Reactors - HyperPhysics
Control Rods for Fission Reactors. Since the continued chain reaction of a nuclear fission reactor depends upon at least one neutron from each fission being absorbed by another fissionable nucleus, the reaction can be controlled by using control rods of material which absorbs neutrons.