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Shielding is used to prevent the escape of neutrons from a reactor. A moderator is used in the reactor to undergo collisions with a neutron. The neutrons produced in fission collide with the molecules of the moderator, imparting their kinetic energy on them. This generates heat in the reactor. (Temperature is the measure of the average random molecular kinetic energy of a substance).
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What is the primary components of a neutron source shield?
Polyethylene
What is heavy water used for?
Heavy water, also known as deuterium oxide, is used as a neutron moderator in nuclear reactors to slow down neutrons and control the nuclear fission process. It is also used in scientific research, pharmaceuticals, and in some types of nuclear magnetic resonance (NMR) spectroscopy experiments.
What is the difference between a composite and shield a Volcano?
Shield Volcanoes erupt less violently and flows further then composite volcanoes. A composite volcano erupts more violently.
What is the difference between a badge and a shield?
A badge is a specific emblem or insignia that represents an organization or achievement, while a shield is a protective or defensive device typically shaped as a broad piece of metal. In a general context, a shield offers physical protection, while a badge serves as a symbolic identifier.
What is the difference between a spartan and athenian hoplite?
The main difference between the Spartan and Athenian is that Athenians wore a breastplate and did not have the Red cape that Spartans wore. Spartans did not wear the breastplate but instead fought only armed with Shield and Weapon.
What is the difference between the Blue Cross and the Blue Shield?
The Blue Cross of America helps to aid Americans after natural disasters. The Blue Shield of America helps to defend the United States overseas through marine technology.
What is the difference between medicaid and blue cross and blue shield?
Medicaid for peoples over 65 years old or disabled. Blue Cross is for everyone.
What is the difference between a sworn shield and a sworn sword?
Sword shield > mostly serves in a bodyguard capacity. Always has to be close around ward. A protector. Sworn sword > someone who has dedicated their martial services. Can be used in a wide variety of ways.
What is the difference between beldan shielded and unshielded cable?
Shielded cable, when the shield is properly grounded, will minimize the amount of EM noise that reaches the shielded conductors.
What is the difference between a shield ground and Signal ground in an 2000 up Toyota OEM Harness?
The cable has both a wire which is grounded within it and a shield around all of the wires in the bundle. The latter is for prevention of noise coupling in and the former is as a reference for digital signals.
What are the uses of carbon heavy water and concrete in the nuclear reactor?
Carbon in the form of graphite is used in some types of reactors as the moderator*.Heavy water is used in some types of reactors as the moderator*.Light water is used in some types of reactors as the moderator*.Light water is used in most current types of reactors as coolant and in the form of steam to drive the turbines.Liquid metals (Sodium, NaK, Mercury, etc.) are used in some types of reactors as coolant.Concrete, often borated concrete to absorb neutrons better, is used in reactors as radiation shielding.*Moderator: a material that slows highly energetic fission neutrons rapidly to thermal energies to prevent their capture by Uranium-238 and increase their chance of causing more fissions of Uranium-235 to keep the reactor running.
What is the difference between a crest and a coat of arms?
A crest is a specific part of a coat of arms, typically located above the shield. It is a symbol or design that represents a person or family. A coat of arms, on the other hand, is a complete heraldic display that includes the shield, crest, helmet, mantling, and other elements.
