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Matter and Radiation

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by

Paul Sheffield

on 3 October 2013

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Transcript of Matter and Radiation

Matter and Radiation
L.O
Particles and Antiparticles
How particles interact.

Particles and Antiparticles
what is antimatter
what happens when a particle and antiparticle meet?
Are Ant-atoms possible?
Antimatter
read pages 10-12
Make notes on antimatter
Positron
PET scanner
Dirac's theories
rest energy
Pair production
annihilation
Positron
Laser Power
The Power of the beam = nhf

n=number of photons in a beam passing a certain point
each photon has the energy hf


Do questions 1-4
Full transcript