ASHOK%20KR%20PRADHAN

1
SEMINAR ON ANTI-MATTER

• By
• ASHOK KR PRADHAN
• ROLL-VU/PG/PHS-IVS
• NO-03
• VIDYASAGAR UNIVERSITY
• DEPT. OF PHYSICS

2
CONTENTS

• WHAT IS ANTI-MATTER ?
• ORIGIN.
• PRODUCTION.
• ENERGY
• ANTI-MATTER EXPLOSION.
• ANTI-MATTER PROPULSION.
• ADVANTAGES.
• DISADVANTAGES.
• CONCLUSION.

3
WHAT IS ANTI-MATTER ?

• Just opposite to the normal MATTER.
• Basic components are
• Positron.
• Antiproton.
• Neutrino.
• So anti-matter is the mirror image of
• matter

Bubble chamber image courtesy Fermilab.
4
ORIGIN

• In 1930, Paul Dirac said that the anti-matter
  should exist.
• In 1932, Carl Anderson discovered positron.
• In 1950, physicists at the Lawrence Radiation
  Laboratory used Bevatron accelarator to produce
  the anti-matter.

5
PRODUCTION OF ANTIMATTER.

• Protons are smashed in high energy particle
  collider.
• Matter-antimatter particles are spontaneously
  created.
• Created from radio active decay.
• Created naturally from energy.

6
PROBLEMS IN PRODUCTION

• Only 1 to 10 nano grams produced in a year.
• Most expensive substance on earth.
• According to NASA 1 gram cost about 62.5
  trillion.
• So not economical in using current technology.

7
PROBLEMS IN STORAGE

• Current trap can only store 1010 antiproton for
  one week.
• Next stage an improvement to 1012 antiproton
  storage.
• For complete antimatter propulsion, 1020
  antiprotons needed to be stored.

Penning trap
8
ENERGY OF ANTI-MATTER

• Anti-matter is a fuel source that produce a huge
  amount of energy.
• 1 gm of anti-matter can heat 1 kg of water to a
  temperature of 20000 times of temperature of the
  core of the sun.
• The reaction of 1kg antimatter with 1kg matter
  produce energy equivalent to 43 megatons TNT.
• Energy is produced mainly due to annihilation of
  matter anti-matter.

9
ANTI-MATTER EXPLOSION

• When anti-matter comes contact with normal
  matter, this equal and opposite charge collide to
  produce an explosion emitting pure radiation
  which have very high energy.

10
ANTIMATTER PROPULSION SYSTEMS

• Two choice of propulsion
• 1)Electron-positron annihilation.
• produces high energy gamma rays.
• impossible to control.
• very dangerous.
• 2)Proton-antiproton annihilation.
• produces charged particles.
• mass left over after annihilation.

11

• Anti-matter pulse propulsion is a variation of
  pulse propulsion based upon the injection of
  anti-matter into the mass of nuclear fuel.
• Energy released by that fuel is very higher than
  any coventional fuels.

12
ADVANTAGES

• FUEL 100 of the matter and anti-matter is
  converted into energy which can used as
  fuel.
• MEDICIN It is used in positron emission
  tomography.
• RESEARCH Positron annihilation spectroscopy is
  used in material research.

13
DISADVANTAGES

• An anti-matter weapon is a hypothetical device
  using anti-matter as a power source.
• It is more deadly weapon.
• There is a lack of anti-matter existing in
  universe.

14
CONCLUSION

• Due to the highest energy release per unit mass
  of any known reaction we can say that antimatter
  will be a future fuel but need a reliable method
  of producing large amount of it.

15
REFERENCES

• Fundamentals of compressible flow with aircraft
  rocket propulsion by S.M.yahia
• http//livefromcern.web.cern.ch
• http//public.web.cern.ch
• http//wikipedia.org

16
(No Transcript)