P3.1 Xrays

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X rays are part of the
electromagnetic spectrum
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They are
ionising
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Which means that
they can get into ceels and cause mutations which are damaging
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Their wavelength is the same as
the diameter of an atom
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Denser materials
=more absorption, looks lighter on the xray photo
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What do they use to produce an electronic image
CCD
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A CCD is
a charged couple device
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Advantages to Xrays and CT scans
non invasive, can treat cancerous tumours, painless, can eliminate the need for a biopsy
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Disadvantages
Same amount of radiation given off in one xray as a usual 10 year exposure, increased risk of cancer
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Card 2

Front

They are

Back

ionising

Card 3

Front

Which means that

Back

Preview of the front of card 3

Card 4

Front

Their wavelength is the same as

Back

Preview of the front of card 4

Card 5

Front

Denser materials

Back

Preview of the front of card 5
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