Control Rod

A control rod is a rod made of chemical elements capable of absorbing many neutrons without fissioning themselves. They are used in nuclear reactors to control the rate of fission of uranium and plutonium. Because these elements have different capture cross sections for neutrons of varying energies, the compositions of the control rods must be designed for the neutron spectrum of the reactor it is supposed to control. Light water reactors (BWR, PWR) and heavy water reactors (HWR) operate with "thermal" neutrons, whereas breeder reactors operate with "fast" neutrons.

Read more about Control RodOperation Principle, Materials Used, Safety

Other articles related to "control rod, control, control rods":

Annihilus - Fictional Character Biography - Annihilation
... They discover the infant Annihilus and his Cosmic Control Rod have been placed under the care of a lesser lord of the Negative Zone, Catastrophus ... Catastrophus had been using the Cosmic Control Rod to stunt the development of the infant Annihilus, hoping to prolong his own rule ... Talon slew Catastrophus and seized the Control Rod, before calling out to the infant Annihilus and asking it to remember in the future that he had spared the creature's life ...
Annihilus - Fictional Character Biography - Early Appearances
... This enhanced his intelligence and strength, creating a "Cosmic Control Rod" and body armaments ... captured the heroes, but they escaped, stealing his Control Rod ... Psycho-Man tried to control the dimensional interface leading to the Microverse, but the Insectovorids, emotionless and immune to his power, overran the entire Sub-Atomica System and forced him to retreat ...
Control Rod - Safety - Criticality Accident Prevention
... Mismanagement or control rod failure was often the cause or aggravating factor for nuclear accidents, including the SL-1 explosion and the Chernobyl disaster ... In carbon dioxide-cooled reactors such as the AGR, if the solid control rods were to fail to arrest the nuclear reaction, nitrogen gas can be injected into the primary coolant cycle ...
R-Type Final - Gameplay - Weapons - Forces
... glowing body within the device, and an external, artificial mechanism called the "control rod" ... The control rod's purpose is to function as an inhibitor for the core ... Control rod components can also be equipped with extra cannons similar to the R-series' default weapon ...
Shutdown (nuclear Reactor)
... being shut down may include having the reactor control key be secured and having no fuel movements or control systems maintenance in progress ... can refer either to the margin by which the reactor is subcritical when all control rods are inserted or to the margin by which the reactor would be shut down in the event of a ... the shutdown margin can be simply calculated as the sum of the control rod worths minus the core excess ...

Famous quotes containing the words rod and/or control:

    Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me.
    Bible: Hebrew Psalms, 23:4.

    When a book, any sort of book, reaches a certain intensity of artistic performance it becomes literature. That intensity may be a matter of style, situation, character, emotional tone, or idea, or half a dozen other things. It may also be a perfection of control over the movement of a story similar to the control a great pitcher has over the ball.
    Raymond Chandler (1888–1959)