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{{era|H3|GOO}}
{{Status|Canon}}
'''Cherenkov radiation''' is a type of radiation emitted by plutonium, such as in [[HORNET mines]], when transitioning from [[Slipspace]] to realspace. It is extremely powerful, reaching across light-minutes. This is what gives Slipspace entry and exit the unique blue coloration, and usually alerts in-system enemy ships to their arrival. [[Covenant]] ships apparently also give off Cherenkov radiation, though whether it is emitted by plutonium or some other material on their ships is unknown.
{{Wikipedia|Cherenkov radiation}}


It also seems that either a material or the fusion core in the [[MJOLNIR]] armor produces Cherenkov radiation, with steps made with the [[Recon Armor]] to reduce the radiation emmited.
'''Čerenkov radiation''' (also spelled '''Cerenkov''' or '''Cherenkov''') is electromagnetic radiation emitted when a charged particle (such as a proton) passes through an insulator at a speed greater than the speed of light in that medium. The characteristic "blue glow" of nuclear reactors is due to Čerenkov radiation. It is named after Russian scientist [[wikipedia:Pavel Alekseyevich Čherenkov|Pavel Alekseyevich Čherenkov]], the 1958 Nobel Prize winner who was the first to characterize it rigorously.<ref>[[Wikipedia:Čerenkov radiation|Čerenkov radiation at Wikipedia]]</ref> Čerenkov radiation only occurs in a medium such as air or water because the speed of light in the medium is slowed. Contrary to popular belief, this phenomena could occur in space, due to there being an extremely low density of particles, along with the container of the fissile material itself.  


'''Please incorporate or delete the following information into this article. I do not understand how to do so.'''
When a starship transitions from [[Slipstream space|slipspace]] to normal space, or vice versa, the glow of Čerenkov radiation emitted by fissile materials, such as [[plutonium]], can give its presence away to enemy forces even if the ship possesses stealth systems. As a result, if complete stealth is required, [[UNSC prowler|prowlers]] are forced to jettison any on-board [[nuclear weapon]]s before transitioning back to normal space to avoid detection.<ref>'''Halo: Ghosts of Onyx''', ''page 187''</ref> In addition, nukes launched from slipspace can easily be detected by enemy sensors, despite the use of [[Stealth ablative coating|stealth coatings]] or [[lead]] linings.<ref>'''Halo: Ghosts of Onyx''', ''page 15''</ref>


Cherenkov radiation is a flash of light produced when charged particles move through water or ice at a speed greater than the speed of light in these substances. Only charged particles produce Cherenkov radiation, so [[neutrinos]] must interact with matter to produce an electron (in the case of electron neutrinos) or a muon (in the case of muon neutrinos) before these detectors can count them.  
Components of the [[MJOLNIR Powered Assault Armor|MJOLNIR armor]], likely its [[Fusion reactor|microfusion plant]], produce Čerenkov radiation. The design of the [[MJOLNIR Powered Assault Armor/Mark VI/R variant|Recon]] and [[MJOLNIR Powered Assault Armor/Mark VI/S variant|Scout]] variants specifically reduces the amount of radiation emitted for stealth purposes.<ref>'''[[Halo: The Essential Visual Guide]]''', ''pages 152, 165''</ref>


==References==
==Sources==
*''[[Halo: Ghosts of Onyx]]''
{{Ref/Sources}}


[[Category:Technology]][[Category:Terms and Phrases]]
[[Category:Physics]]

Latest revision as of 14:30, March 23, 2022

Wikipedia.png
 There is more information available on this subject at Čerenkov radiation on the English Wikipedia.

Čerenkov radiation (also spelled Cerenkov or Cherenkov) is electromagnetic radiation emitted when a charged particle (such as a proton) passes through an insulator at a speed greater than the speed of light in that medium. The characteristic "blue glow" of nuclear reactors is due to Čerenkov radiation. It is named after Russian scientist Pavel Alekseyevich Čherenkov, the 1958 Nobel Prize winner who was the first to characterize it rigorously.[1] Čerenkov radiation only occurs in a medium such as air or water because the speed of light in the medium is slowed. Contrary to popular belief, this phenomena could occur in space, due to there being an extremely low density of particles, along with the container of the fissile material itself.

When a starship transitions from slipspace to normal space, or vice versa, the glow of Čerenkov radiation emitted by fissile materials, such as plutonium, can give its presence away to enemy forces even if the ship possesses stealth systems. As a result, if complete stealth is required, prowlers are forced to jettison any on-board nuclear weapons before transitioning back to normal space to avoid detection.[2] In addition, nukes launched from slipspace can easily be detected by enemy sensors, despite the use of stealth coatings or lead linings.[3]

Components of the MJOLNIR armor, likely its microfusion plant, produce Čerenkov radiation. The design of the Recon and Scout variants specifically reduces the amount of radiation emitted for stealth purposes.[4]

Sources[edit]

  1. ^ Čerenkov radiation at Wikipedia
  2. ^ Halo: Ghosts of Onyx, page 187
  3. ^ Halo: Ghosts of Onyx, page 15
  4. ^ Halo: The Essential Visual Guide, pages 152, 165
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