Flashcards
Sem título
Flashcards do conjunto (9)
- 1what kind of waves are x raystransverse
- 2are x-rays short or long wave lengths?short
- 3what frequency are x-rays?high frequency
- 4basics of x-rayshigh energy this means they are ionising and can knock electrons on or off atoms creating ions
- 5What makes x-rays dangerous?They are ionising
this increases the risk of cancer - 6X-Rays affect photographic film in the same way as light- X-Rays are absorbed by bone and metal (turns images white)
- X-Rays are transmitted by soft tissue like muscle
- This is shown in x-ray images because they turn grey as some x-ray is let in but not all - 7MEDICAL USES OF X-RAY- visualising bone fractures and dental problems
- killing cancer cells - 8PRECAUTIONS OF USING X-RAYS- X-Rays are ionising and can cause mutations which increase the risk of cancer therefore you need to limit the exposure time.
- 9PRECAUTIONS OF USING X-RAYS how?people working with x-rays normally go behind a lead screen as lead absorbs x-ray radiation
or they wear lead aprons
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- FlashCards sobre Sem título, criado por Amal Khlafa em 26-01-2016.
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- Amal Khlafa
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