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Viktor Bollen Brett Giles

Viktor Bollen Brett Giles. Outline. What is antimatter? Energy created by antimatter matter collisions History Production Storage Current and Theoretical Uses Antiuniverse Theory. What is antimatter?. Antimatter is the counter part to matter For every element there is an antielement

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Viktor Bollen Brett Giles

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  1. Viktor BollenBrett Giles

  2. Outline • What is antimatter? • Energy created by antimatter matter collisions • History • Production • Storage • Current and Theoretical Uses • Antiuniverse Theory

  3. What is antimatter? • Antimatter is the counter part to matter • For every element there is an antielement • All antielements are the same mass with opposite charges, and magnetic moment

  4. What is antimatter? • Matter cannot be created without antimatter. • Where is all the antimatter?

  5. Energy • E = mc^2 • m/2 of antimatter and m/2 of matter, 100% energy yield

  6. Energy BOOM proton antiproton electron p positron _ p H _ H γ γ hydrogen antihydrogen

  7. History • Paul Dirac • Carl Anderson • Emilio Segre and Owen Chamberlain

  8. Paul Dirac The history of antimatter begins in 1928 with the physicist Paul Dirac

  9. Carl David Anderson In 1932 the next logical step in the history of antimatter was taken. The prediction turned reality

  10. Emilio Segre&Owen Chamberlain In 1955 using the Bevatron accelerator at Berkley University, antiprotons were artificially produced

  11. Artificial Production • Artificially producing antimatter is an extremely inefficient process • High energy collisions are required • Penning traps capture the antiprotons

  12. Idiot’s guide to making antihydrogen • Accelerate a proton to high velocities • Smash it into something (Tungsten) • Catch in penning trap • Throw Positrons at it • To observe • Decelerate the antiproton • Throw electrons at it • Take the electrons away • Throw Positrons at it

  13. Top Research Facilities CERN Geneva, Switzerland Fermilab Chicago, USA

  14. CERN • The largest particle physics facility in the world • Created antihydrogen in 1995 • Activated the Antiproton Decelerator in 1999 Antiproton Collector and Antiproton Accumilator

  15. Fermilab • Proposed site for the International Linear Collider • Creates antiprotons on a regular basis with the Tevatron Collider the Tevatron Collider

  16. Natural Production • High energy cosmic ray matter collisions • Radioactive decay (positive beta decay)

  17. Storage • Storage is difficult because shortly after creation antimatter particles contact matter particles and annihilate. • We can only produce an extremely small amount of antimatter “If we could assemble all of the antimatter we've ever made at CERN and annihilate it with matter, we would have enough energy to light a single electric light bulb for a few minutes”

  18. Current and Theoretical Uses • PET Scans (Positron Emission Tomography) • Study particle behavior • Weapons • Fuel Energy

  19. Antiuniverse Theory • Dirac was first to contemplate it’s existence • Antiuniverse would exist of antistars antigalaxys antiplanets and antiyou • Boundry between them would create a lot of gamma rays

  20. Sources • http://www.lbl.gov/abc/Antimatter.html • http://livefromcern.web.cern.ch/livefromcern/antimatter/history/AM-history00.html • http://en.wikipedia.org/ • http://public.web.cern.ch/public/Content/Chapters/Spotlight/SpotlightAandD-en.html • http://science.nasa.gov/headlines/y2000/ast29may_1m.htm • http://public.web.cern.ch/public/Content/Chapters/Spotlight/SpotlightAandD-en.html

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