6.5 Ultraviolet, Xray And Gamma Flashcards

1
Q

What is fluorescence ?

A

Ultra violet radiation absorbed and visible light emitted

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2
Q

How do security pens work ?

A

Under uv light ink will be visible and glow but invisible otherwise

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3
Q

What does the sun produce ?

A

Ultraviolet radiation

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4
Q

What do uv lamps give ?

A

Artificial suntan

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5
Q

What do radiographers do ?

A

Take x rays to check for any broken bones because erstes pass through flesh but not bone

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6
Q

Why is X-ray and gamma used for cancer

A

High doses kill all living cells

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7
Q

How is gamma used as medical tracer ?

A

Gamma emitting source is injected in patient and progress followed

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8
Q

What do radiographers wear?

A

Lead aprons and stand behind lead screen or leave room

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