Uses of Radiation

HideShow resource information
Smoke Detectors usually contain a...
small radioactive source
1 of 13
This emits a stream of...
highly ionising alpha particles
2 of 13
An electronic detector attracts the ions and...
and measures how many are being produced by detecting them as a current
3 of 13
It absorbs many of the ions and this...
reduces the ionisation current
4 of 13
If the drop is large, due to thick smoke for e.g....
the siren sounds
5 of 13
Certain radioactive isotopes can be inserted into our...
bodies
6 of 13
Their progress around are bodies can be followed by using an...
external detector
7 of 13
Iodine-131 is absorbed by the...
thyroid gland
8 of 13
But it gives out radiation which can be detected to...
indicate whether the gland is taking in the
9 of 13
All isotopes taken into the body must be...
GAMMA OR BETA emitters so that the radiation passes out of the body and the radioactivity inside the body disappears
10 of 13
Since high doses of gamma rays kill...
all living cells, they can be used to treat cancers
11 of 13
They have to be directed carefully and at...
the right dosage so that you don't kill normal cells too
12 of 13
A fair bit of damage can be done to the...
normal cells which makes the patient ill
13 of 13

Other cards in this set

Card 2

Front

highly ionising alpha particles

Back

This emits a stream of...

Card 3

Front

and measures how many are being produced by detecting them as a current

Back

Preview of the back of card 3

Card 4

Front

reduces the ionisation current

Back

Preview of the back of card 4

Card 5

Front

the siren sounds

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Radioactivity resources »