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Antimatter weapon

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Theoretical weapon using antimatter
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Antimatter
A Feynman diagram showing the annihilation of an electron and a positron (antielectron), creating a photon that later decays into an new electron–positron pair.
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Anantimatter weapon is a theoretically possible device usingantimatter as a power source, apropellant, or an explosive for aweapon. Antimatter weapons are currently too costly and unreliable to be viable in warfare, as producing antimatter is enormously expensive (estimated at US$6 billion for every 100nanograms), the quantities of antimatter generated are very small, and current technology has great difficulty containing antimatter, which annihilates upon touching ordinary matter.[1]

The paramount advantage of such a theoretical weapon is that antimatter and matter collisions result in the entire sum of theirmass energy equivalent being released as energy, which is at least two orders of magnitude greater than the energy release of the most efficientfusion weapons (100% vs 0.4–1%).[2]Annihilation requires and converts exactly equal masses of antimatter and matter by the collision which releases the entire mass-energy of both, which for 1 gram is ~9×1013joules. Using the convention that 1 kilotonTNT equivalent equals 4.184×1012 joules (or one trillion calories of energy), one half gram of antimatter reacting with one half gram of ordinary matter (one gram total) results in 21.5 kilotons-equivalent of energy (the same as theatomic bomb dropped onNagasaki in 1945).[3]

Cost

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As of July 2024[update], the cost of producing one millionth of a gram of antimatter was estimated atUS $62 billion.[1][4] By way of comparison, the cost of theManhattan Project (to produce the first atomic bomb) is estimated at US$23 billion in 2007 prices.[5] As such,Hui Chen ofLawrence Livermore National Laboratory dismissed concerns about antimatter bombs in 2008 as "unrealistic".[6]

Antimatter-catalyzed weapons

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Antimatter-catalyzed nuclear pulse propulsion proposes the use of antimatter as a "trigger"[7] to initiate small nuclear explosions; the explosions provide thrust to a spacecraft. The same technology could theoretically be used to make very small and possibly "fission-free" (very lownuclear fallout) weapons (seepure fusion weapon).[8][9]

In popular culture

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An antimatter weapon is a part of the plot of theDan Brown bookAngels & Demons and itsfilm adaptation, where it is used in a plot to blow up theVatican City.[10]

TheGround Zero expansion pack of the video gameQuake II requires the protagonist to manufacture an Antimatter Bomb in the Munitions Plant to achieve the final objective.[11]

In theStar Trek franchise,Federation starships are armed withphoton torpedoes which contain antimatter warheads.[12]

References

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  1. ^ab"Air Force pursuing antimatter weapons / Program was touted publicly, then came official gag order".San Francisco Chronicle. 4 October 2004.Archived from the original on 29 December 2014. Retrieved17 January 2015.
  2. ^"Fusion Fuel".atomic rockets. Retrieved5 March 2020.
  3. ^"Antimatter Fuel".atomic rockets. Retrieved5 March 2020.
  4. ^McKeown, Matthew (18 December 2023)."Antimatter Tops List Of World's Most Expensive Material At $62 Trillion Per Gram".
  5. ^"Manhattan Project".Archived from the original on 28 December 2014. Retrieved17 January 2015.
  6. ^"Laser technique produces bevy of antimatter".NBC News. 1 December 2008. Retrieved24 May 2022.
  7. ^"Antimatter weapons".cui.unige.ch.Archived from the original on 24 April 2013. Retrieved4 May 2018.
  8. ^Ramsey, Syed (12 May 2016).Tools of War: History of Weapons in Modern Times. Vij Books India Pvt Ltd.ISBN 9789386019837.Archived from the original on 16 August 2017. Retrieved4 May 2018 – via Google Books.
  9. ^"Details on antimatter triggered fusion bombs - NextBigFuture.com".nextbigfuture.com. 22 September 2015.Archived from the original on 22 April 2017. Retrieved4 May 2018.
  10. ^Delphine."Angels & Demons: The Physics Behind The Movie (and The Book)".Wired. Retrieved13 March 2021.
  11. ^Degorram (23 September 2020).QUAKE 2: Ground Zero | Part 25 | Anti-Matter Bomb. Retrieved2 August 2024 – via YouTube.
  12. ^Whitfild, Stephen E.; Roddenberry, Gene (1991).The Making of Star Trek (Twenty-seventh Print ed.). New York, NY: Ballantine Books.ISBN 0345340191.

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