Fissile - Revision history

Jmdonev: 1 revision imported

2018-09-03T22:23:33Z

1 revision imported

← Older revision	Revision as of 22:23, 3 September 2018
(No difference)

energy>Jmdonev at 20:24, 31 July 2018

2018-07-31T20:24:55Z

← Older revision		Revision as of 20:24, 31 July 2018
Line 1:		Line 1:
	[[Category:Done ~~2015~~-07-24]]		[[Category:Done 2018-08-03]]
	[[File:2000px-Fission_chain_reaction.svg.png\|360px\|right\|thumb\|Figure 1. Uranium-235 is a fissile material as it is shown in this image to capture a slow neutron and undergo nuclear fission.<ref>Wikimedia Commons. (July 6, 2015). ''Fission Chain Reaction'' [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Fission_chain_reaction.svg/2000px-Fission_chain_reaction.svg.png</ref>]]		[[File:2000px-Fission_chain_reaction.svg.png\|360px\|right\|thumb\|Figure 1. Uranium-235 is a fissile material as it is shown in this image to capture a slow neutron and undergo nuclear fission.<ref>Wikimedia Commons. (July 6, 2015). ''Fission Chain Reaction'' [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Fission_chain_reaction.svg/2000px-Fission_chain_reaction.svg.png</ref>]]

Line 6:		Line 6:
	There are several types of fissile [[isotope]]s, and some of these isotopes can be created from [[fertile]] isotopes through a process of [[irradiation]] in special [[nuclear reactor]]s. Examples of fissile material include [[uranium]]-235, uranium-233, and [[plutonium]]-239.<ref>Ian Hore-Lacy. (July 3rd, 2015). Nuclear Energy in the 21st Century, 1st Ed. Burlington, MA, U.S.A: Elsevier Inc, 2006.</ref> Uranium-235 is the only naturally occurring fissile isotope, and it makes up only 0.7 % of natural uranium.<ref>J.D. Meyers. (July 6, 2015). ''Fissile Isotopes'' [Online]. Available: http://www.gg.uwyo.edu/content/laboratory/nuclear/power/fission/fissile.asp?callNumber=14276&SubcallNumber=0&color=&unit=2</ref> Fissile material excludes natural uranium and depleted uranium that have not been irradiated, or have only been irradiated in thermal reactors.<ref>NRC Glossary. (July 6, 2015). ''Fissile Material'' [Online]. Available: http://www.nrc.gov/reading-rm/basic-ref/glossary/fissile-material.html</ref>		There are several types of fissile [[isotope]]s, and some of these isotopes can be created from [[fertile]] isotopes through a process of [[irradiation]] in special [[nuclear reactor]]s. Examples of fissile material include [[uranium]]-235, uranium-233, and [[plutonium]]-239.<ref>Ian Hore-Lacy. (July 3rd, 2015). Nuclear Energy in the 21st Century, 1st Ed. Burlington, MA, U.S.A: Elsevier Inc, 2006.</ref> Uranium-235 is the only naturally occurring fissile isotope, and it makes up only 0.7 % of natural uranium.<ref>J.D. Meyers. (July 6, 2015). ''Fissile Isotopes'' [Online]. Available: http://www.gg.uwyo.edu/content/laboratory/nuclear/power/fission/fissile.asp?callNumber=14276&SubcallNumber=0&color=&unit=2</ref> Fissile material excludes natural uranium and depleted uranium that have not been irradiated, or have only been irradiated in thermal reactors.<ref>NRC Glossary. (July 6, 2015). ''Fissile Material'' [Online]. Available: http://www.nrc.gov/reading-rm/basic-ref/glossary/fissile-material.html</ref>

	Fissile materials are used as [[fuel]] in [[nuclear reactor]]s as they have the ability to be split by neutrons in a self-sustaining [[nuclear chain reaction]]. These reactions release large amounts of [[energy]] and this energy is used to [[electricity generation\|generate electricity]]. Fissile materials can also be used to make nuclear weapons, where the fission energy is released all at ~~once - instead~~ of gradually as is the case in ~~reactors - to~~ create a large explosion.<ref>IEER. (July 6, 2015). ''Fissile Material Basics'' [Online]. Available: http://ieer.org/resource/factsheets/fissile-material-basics/</ref>		Fissile materials are used as [[fuel]] in [[nuclear reactor]]s as they have the ability to be split by neutrons in a self-sustaining [[nuclear chain reaction]]. These reactions release large amounts of [[energy]] and this energy is used to [[electricity generation\|generate electricity]]. Fissile materials can also be used to make nuclear weapons, where the fission energy is released all at once—instead of gradually as is the case in reactors—to create a large explosion.<ref>IEER. (July 6, 2015). ''Fissile Material Basics'' [Online]. Available: http://ieer.org/resource/factsheets/fissile-material-basics/</ref>

	The property which determines whether or not an isotope is fissile or just fertile is known as the '''fission cross section'''. When a slow or ''thermal'' neutron interacts with an atom, it can be scattered or absorbed. Fissionable isotopes have high neutron fission cross sections, and low cross sections for absorption. This means that both fissile and fertile isotopes will have high neutron fission cross sections and will absorb the neutron.<ref>Carey Sublette. (July 6, 2015). ''Fission Summary'' [Online]. Available: http://nuclearweaponarchive.org/Library/Fission.html</ref> In the case of uranium-235, absorption of a neutron results in the uranium breaking into lighter nuclei - thus making it '''fissile'''. Uranium-238 absorbs a neutron and forms plutonium-239 - thus making it '''fertile'''.		The property which determines whether or not an isotope is fissile or just fertile is known as the '''fission cross section'''. When a slow or ''thermal'' neutron interacts with an atom, it can be scattered or absorbed. Fissionable isotopes have high neutron fission cross sections, and low cross sections for absorption. This means that both fissile and fertile isotopes will have high neutron fission cross sections and will absorb the neutron.<ref>Carey Sublette. (July 6, 2015). ''Fission Summary'' [Online]. Available: http://nuclearweaponarchive.org/Library/Fission.html</ref> In the case of uranium-235, absorption of a neutron results in the uranium breaking into lighter nuclei - thus making it '''fissile'''. Uranium-238 absorbs a neutron and forms plutonium-239 - thus making it '''fertile'''.

			==For Further Reading==
			*[[Uranium-235]]
			*[[Nuclear power]]
			*[[Nuclear chain reaction]]
			*[[Neutron moderator]]
			*[[Fission daughter product]]
			*Or explore a [[Special:Random\|random page]]

	==References==		==References==
	{{reflist}}		{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]

J.williams: 1 revision imported

2015-08-26T21:31:05Z

1 revision imported

← Older revision	Revision as of 21:31, 26 August 2015
(No difference)

J.williams at 16:54, 12 August 2015

2015-08-12T16:54:22Z

New page

[[Category:Done 2015-07-24]]
[[File:2000px-Fission_chain_reaction.svg.png|360px|right|thumb|Figure 1. Uranium-235 is a fissile material as it is shown in this image to capture a slow neutron and undergo nuclear fission.<ref>Wikimedia Commons. (July 6, 2015). ''Fission Chain Reaction'' [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Fission_chain_reaction.svg/2000px-Fission_chain_reaction.svg.png</ref>]]

<onlyinclude>'''Fissile''' material refers to a [[nuclide]] that is capable of capturing a ''slow'' or ''thermal'' [[neutron]] and undergoing [[fission]].</onlyinclude> Although this is sometimes used as a synonym for fissionable material, it is more limited because "fissile" includes the limitation that the nuclide must be fissionable by ''thermal neutrons''.

There are several types of fissile [[isotope]]s, and some of these isotopes can be created from [[fertile]] isotopes through a process of [[irradiation]] in special [[nuclear reactor]]s. Examples of fissile material include [[uranium]]-235, uranium-233, and [[plutonium]]-239.<ref>Ian Hore-Lacy. (July 3rd, 2015). Nuclear Energy in the 21st Century, 1st Ed. Burlington, MA, U.S.A: Elsevier Inc, 2006.</ref> Uranium-235 is the only naturally occurring fissile isotope, and it makes up only 0.7 % of natural uranium.<ref>J.D. Meyers. (July 6, 2015). ''Fissile Isotopes'' [Online]. Available: http://www.gg.uwyo.edu/content/laboratory/nuclear/power/fission/fissile.asp?callNumber=14276&SubcallNumber=0&color=&unit=2</ref> Fissile material excludes natural uranium and depleted uranium that have not been irradiated, or have only been irradiated in thermal reactors.<ref>NRC Glossary. (July 6, 2015). ''Fissile Material'' [Online]. Available: http://www.nrc.gov/reading-rm/basic-ref/glossary/fissile-material.html</ref>

Fissile materials are used as [[fuel]] in [[nuclear reactor]]s as they have the ability to be split by neutrons in a self-sustaining [[nuclear chain reaction]]. These reactions release large amounts of [[energy]] and this energy is used to [[electricity generation|generate electricity]]. Fissile materials can also be used to make nuclear weapons, where the fission energy is released all at once - instead of gradually as is the case in reactors - to create a large explosion.<ref>IEER. (July 6, 2015). ''Fissile Material Basics'' [Online]. Available: http://ieer.org/resource/factsheets/fissile-material-basics/</ref>

The property which determines whether or not an isotope is fissile or just fertile is known as the '''fission cross section'''. When a slow or ''thermal'' neutron interacts with an atom, it can be scattered or absorbed. Fissionable isotopes have high neutron fission cross sections, and low cross sections for absorption. This means that both fissile and fertile isotopes will have high neutron fission cross sections and will absorb the neutron.<ref>Carey Sublette. (July 6, 2015). ''Fission Summary'' [Online]. Available: http://nuclearweaponarchive.org/Library/Fission.html</ref> In the case of uranium-235, absorption of a neutron results in the uranium breaking into lighter nuclei - thus making it '''fissile'''. Uranium-238 absorbs a neutron and forms plutonium-239 - thus making it '''fertile'''.

==References==
{{reflist}}
[[Category:Uploaded]]