Fission - Revision history

Spdx-dv: changed link to direct to MPDGs

2024-06-19T18:28:30Z

changed link to direct to MPDGs

← Older revision		Revision as of 18:28, 19 June 2024
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	When radioactive atoms decay or are hit by neutrons, they produce lighter elements and release energy in a process known as fission. Fission can produce large amounts of energy over a long period, which makes it an ideal heat source for [[Nuclear Thermal Rocket\|nuclear thermal rockets]], where radioactive fuel is contained within a [[Reactor Core\|reactor core]] and cooled by [[Propellant Tank\|propellant]].		When radioactive atoms decay or are hit by neutrons, they produce lighter elements and release energy in a process known as fission. Fission can produce large amounts of energy over a long period, which makes it an ideal heat source for [[Nuclear Thermal Rocket\|nuclear thermal rockets]], where radioactive fuel is contained within a [[Reactor Core\|reactor core]] and cooled by [[Propellant Tank\|propellant]].

	The heat produced by fission is also ideal in power generation, which can be done through the use of a [[Powerplant\|turbine]] or [[Auxiliary Power Unit\|magnetoplasmadynamic generator]].		The heat produced by fission is also ideal in power generation, which can be done through the use of a [[Powerplant\|turbine]] or [[Auxiliary Power Unit#Magnetoplasmadynamic generators\|magnetoplasmadynamic generator]].

	== Fuel ==		== Fuel ==

Spdx-dv: added part about longevity

2024-06-17T17:39:19Z

added part about longevity

← Older revision		Revision as of 17:39, 17 June 2024
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	Thorium may also be used (as is the case for the SO6 fuel rod series), but the most common isotope of thorium is not fissile; it is, however, fertile. When exposed to neutrons, fertile materials absorb them to create fissile materials, which can then undergo fission to produce energy.		Thorium may also be used (as is the case for the SO6 fuel rod series), but the most common isotope of thorium is not fissile; it is, however, fertile. When exposed to neutrons, fertile materials absorb them to create fissile materials, which can then undergo fission to produce energy.

			Radioactive fuels last far longer than chemical fuels due to their incredible energy density. Fuel rods can operate continuously for months or even years before needing to be replaced, depending on how they're used.

	== Controlling the Reaction ==		== Controlling the Reaction ==

Spdx-dv: rewrite with some cool science

2024-06-17T17:19:08Z

rewrite with some cool science

← Older revision		Revision as of 17:19, 17 June 2024
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	~~====== Nuclear fission ======~~		When radioactive atoms decay or are hit by neutrons, they produce lighter elements and release energy in a process known as fission. Fission can produce large amounts of energy over a long period, which makes it an ideal heat source for [[Nuclear Thermal Rocket\|nuclear thermal rockets]], where radioactive fuel is contained within a [[Reactor Core\|reactor core]] and cooled by [[Propellant Tank\|propellant]].
	~~Process of~~ radioactive decay ~~in which nucleus of an atom splits into smaller~~, lighter ~~nuclei~~. Fission ~~releases very~~ large amounts of energy ~~and causes~~ a nuclear ~~chain reaction in nearby atoms. Fission rocket use fissionable~~ fuel ~~in order to produce~~ [[~~thermal power~~]] ~~to the~~ [[~~reactor~~]].

	~~Fission can be controlled~~ by ~~adjusting proximity of the fuel. There are different approaches to control mechanisms:~~		The heat produced by fission is also ideal in power generation, which can be done through the use of a [[Powerplant\|turbine]] or [[Auxiliary Power Unit\|magnetoplasmadynamic generator]].
	* Control rods can be ~~inserted between [[fuel rod]]s, inhabiting~~ the ~~chain reaction.~~
	* [[~~fuel rod~~\|~~Fuel rod~~]]~~s themselves can be moved away slowing down the reaction.~~
	* In [[~~liquid core~~]] ~~reactors, the fissile fuel itself can be pumped away the reaction chamber~~.

	~~Current~~ nuclear thermal ~~rockets use either [[uranium]]~~, ~~[[plutionium]] or [[~~thorium~~]] as a~~ fuel ~~source~~.		== Fuel ==
			Specific isotopes of elements such as uranium (in the case of the Yama-SSR series) and plutonium are the chosen fuel for nuclear reactors because they are fissile. While many radioactive isotopes are fissionable, meaning that they undergo fission when hit by neutrons of any energy level, fissile materials are especially responsive to low-energy "thermal" neutrons. Thermal neutrons are the result of high-energy neutrons scattering and losing energy in a moderator, which absorbs and dissipates their energy as heat.

			Thorium may also be used (as is the case for the SO6 fuel rod series), but the most common isotope of thorium is not fissile; it is, however, fertile. When exposed to neutrons, fertile materials absorb them to create fissile materials, which can then undergo fission to produce energy.

			== Controlling the Reaction ==
			Fission can be controlled by adjusting the parameters of the reactor. Different approaches include:

			* Control rods that absorb neutrons can be inserted between the fuel rods, reducing the amount of neutrons available to trigger fission.
			* The fuel rods can be removed from the reactor, reducing the amount of fissile material for neutrons to hit.
			* In liquid core reactors, the liquid fuel can be pumped away from the moderator, reducing the amount of thermal neutrons that can trigger fission.

	[[Category:Codex]]		[[Category:Codex]]

Hyperflare at 09:47, 14 February 2022

2022-02-14T09:47:03Z

← Older revision		Revision as of 09:47, 14 February 2022
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	====== Nuclear fission ======		====== Nuclear fission ======
	Process of radioactive decay in which nucleus of an atom splits into smaller, lighter nuclei. Fission releases very large amounts of energy and causes a nuclear chain reaction in nearby atoms. Fission rocket use fissionable fuel in order to produce [[~~codex:~~thermal power]] to the [[~~codex:~~reactor]].		Process of radioactive decay in which nucleus of an atom splits into smaller, lighter nuclei. Fission releases very large amounts of energy and causes a nuclear chain reaction in nearby atoms. Fission rocket use fissionable fuel in order to produce [[thermal power]] to the [[reactor]].

	Fission can be controlled by adjusting proximity of the fuel. There are different approaches to control mechanisms:		Fission can be controlled by adjusting proximity of the fuel. There are different approaches to control mechanisms:
	* Control rods can be inserted between [[~~codex:~~fuel rod]]s, inhabiting the chain reaction.		* Control rods can be inserted between [[fuel rod]]s, inhabiting the chain reaction.
	* [[~~codex:~~fuel rod\|Fuel rod]]s themselves can be moved away slowing down the reaction.		* [[fuel rod\|Fuel rod]]s themselves can be moved away slowing down the reaction.
	* In [[~~codex:~~liquid core]] reactors, the fissile fuel itself can be pumped away the reaction chamber.		* In [[liquid core]] reactors, the fissile fuel itself can be pumped away the reaction chamber.

	Current nuclear thermal rockets use either [[~~codex:~~uranium]], [[~~codex:~~plutionium]] or [[~~codex:~~thorium]] as a fuel source.		Current nuclear thermal rockets use either [[uranium]], [[plutionium]] or [[thorium]] as a fuel source.

	[[Category:Codex]]		[[Category:Codex]]

Hyperflare: Created page with "====== Nuclear fission ====== Process of radioactive decay in which nucleus of an atom splits into smaller, lighter nuclei. Fission releases very large amounts of energy and causes a nuclear chain reaction in nearby atoms. Fission rocket use fissionable fuel in order to produce codex:thermal power to the codex:reactor. Fission can be controlled by adjusting proximity of the fuel. There are different approaches to control mechanisms: * Control rods can be inser..."

2022-02-14T09:46:33Z

Created page with "====== Nuclear fission ====== Process of radioactive decay in which nucleus of an atom splits into smaller, lighter nuclei. Fission releases very large amounts of energy and causes a nuclear chain reaction in nearby atoms. Fission rocket use fissionable fuel in order to produce codex:thermal power to the codex:reactor. Fission can be controlled by adjusting proximity of the fuel. There are different approaches to control mechanisms: * Control rods can be inser..."

New page

====== Nuclear fission ======
Process of radioactive decay in which nucleus of an atom splits into smaller, lighter nuclei. Fission releases very large amounts of energy and causes a nuclear chain reaction in nearby atoms. Fission rocket use fissionable fuel in order to produce [[codex:thermal power]] to the [[codex:reactor]].

Fission can be controlled by adjusting proximity of the fuel. There are different approaches to control mechanisms:
* Control rods can be inserted between [[codex:fuel rod]]s, inhabiting the chain reaction.
* [[codex:fuel rod|Fuel rod]]s themselves can be moved away slowing down the reaction.
* In [[codex:liquid core]] reactors, the fissile fuel itself can be pumped away the reaction chamber.

Current nuclear thermal rockets use either [[codex:uranium]], [[codex:plutionium]] or [[codex:thorium]] as a fuel source.

[[Category:Codex]]