Radiation

Radiation

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  • Created by: Hayley
  • Created on: 27-03-10 12:47
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Radiation
The three types of radiation are:
Alpha, , Radioactivity
Beta, ,Radioactivity
Gamma, ,Radioactivity
High energy particle
Same as the nucleus of a helium atom
2 protons and 2 Newton's joined
Highly ionizing
Stopped by a few centre meters of air and paper
Very high energy electrons
Travel at about 90% of the speed of light
Stopped by lead
Reduced by aluminium
Most energetic part of the electromagnetic spectrum
Travels at the speed of light
Least ionizing, but is still dangerous
Only stopped by metres of lead and concrete
Irradiation Vs contamination

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