why do control rods absorb neutrons ?

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https://en.wikipedia.org/wiki/Control_rod

https://en.wikipedia.org/wiki/Control_rod
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 many neutrons without themselves decaying.

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large.stanford.edu/courses/2011/ph241/grayson1
Control Rods in Nuclear Reactors
Control rods are essentially a highly effective neutron-absorbing mechanical structure, which can be actively inserted or withdrawn from the reactor core while the fission process is occurring.

https://www.nuclear-power.com / nuclear-power-plant / control-rods

https://www.nuclear-power.com / nuclear-power-plant / control-rods
Control Rods | Description, Types & Uses | nuclear-power.com
By absorbing neutrons, a control rod prevents the neutrons from causing further fissions. Control rods are an important safety system for nuclear reactors. Their prompt action and prompt response to the reactor are indispensable.

https://energyeducation.ca/encyclopedia/Control_rod

https://energyeducation.ca/encyclopedia/Control_rod
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. [2]

https://physics.stackexchange.com/questions/144329/how-do-control-rods-work

https://physics.stackexchange.com/questions/144329/how-do-control-rods-work
How do control rods work? – Physics Stack Exchange
Nuclear reactors also have control rods, which you stick down into the fuel to absorb neutrons, to slow the reaction down, or withdraw to speed the reaction up. But that’s the part that’s never made any sense to me.

https://www.ck12.org/flexi/physics/nuclear-reactors/what-is-the-purpose-of-a-control-rod-in-a-nuclear-reactor

https://www.ck12.org/flexi/physics/nuclear-reactors/what-is-the-purpose-of-a-control-rod-in-a-nuclear-reactor
Q: What is the purpose of a control rod in a nuclear reactor?
The purpose of the control rods is to absorb neutrons to regulate the rate of the chain reaction so that the water does not overheat and destroy the reactor. Discuss further with Flexi Ask your own question! The control rods play an important role in the modulation of the nuclear chain reaction (usually a collision of a with uranium).

https://www.bbc.co.uk/bitesize/guides/zxwkjty/revision/3

https://www.bbc.co.uk/bitesize/guides/zxwkjty/revision/3
Nuclear decay and nuclear energy – WJEC Controlling the reaction – BBC
The control rods can be moved down into the reactor, which slows the reaction down by absorbing more of the neutrons, or moved up so that fewer of the neutrons are absorbed, which means…

https://www.ck12.org/flexi/physical-science/half-life-in-chemistry/what-do-control-rods-do-in-a-nuclear-reactor

https://www.ck12.org/flexi/physical-science/half-life-in-chemistry/what-do-control-rods-do-in-a-nuclear-reactor
Q: What do control rods do in a nuclear reactor? – CK-12 Foundation
The purpose of the control rods is to absorb neutrons to regulate the rate of the chain reaction so that the water does not overheat and destroy the reactor. Discuss further with Flexi Ask your own question! Want to learn more? Go to Lesson Page

https://www.nrc.gov/reading-rm/basic-ref/students/for-educators/unit3-nuclear-reactors-energy-generation.html

https://www.nrc.gov/reading-rm/basic-ref/students/for-educators/unit3-nuclear-reactors-energy-generation.html
Unit 3: Nuclear Reactors/Energy Generation | NRC.gov
The control rods slide up and down in between the fuel assemblies in the reactor core. They control or regulate the speed of the nuclear reaction by absorbing neutrons. … When the control rods absorb neutrons, fewer neutrons hit the uranium atoms thus slowing down the chain reaction. On the other hand, when the core temperature goes down, the …

https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Foundations_of_Introductory_Chemistry-1/1.14:_Nuclear_Chemistry/19.08:_Nuclear_Reactors

https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Foundations_of_Introductory_Chemistry-1/1.14:_Nuclear_Chemistry/19.08:_Nuclear_Reactors
19.08: Nuclear Reactors – Chemistry LibreTexts
The control rods, usually made of cadmium metal, absorb neutrons in order to control the rate of fission. By raising or lowering the control rods in the reactor, the concentration of neutrons, called the neutron flux, in the core increases or decreases respectively. The other component is the coolant. lesoutrali bot