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  • Created by: lozza nic
  • Created on: 17-03-14 14:55
What is background radiation
Background radiation is all around us. Some of it comes from natural sources and some comes from artificial sources.
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what are the three main natural radiation sources
cosmic rays , rocks and soil and living things
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artificial sources
Artificial sources account for about 15 per cent of the average background radiation dose. Nearly all artificial background radiation comes from medical procedures such as receiving x-rays for x-ray photographs
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whats alpha radiation
Alpha radiation consists of alpha particles. An alpha particle is identical to the nucleus of a helium atom, which comprises two protons and two neutrons.
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beta radiation
Beta radiation consists of high energy electrons emitted from the nucleus. These electrons have not come from the electron shells or energy levels around the nucleus. Instead, they form when a neutron splits into a proton and an electron. The electro
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gamma radiation
Gamma radiation is very short wavelength - high frequency - electromagnetic radiation. This is similar to other types of electromagnetic radiation such as visible light and x-rays, which can travel long distances
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Other cards in this set

Card 2

Front

what are the three main natural radiation sources

Back

cosmic rays , rocks and soil and living things

Card 3

Front

artificial sources

Back

Preview of the front of card 3

Card 4

Front

whats alpha radiation

Back

Preview of the front of card 4

Card 5

Front

beta radiation

Back

Preview of the front of card 5
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