SRP Posters for Schools | Page 10

A neutron walks into a bar .

S

R

THE SOCIETY FOR

He orders a pint and a bag of crisps . It says “ How much do I owe you ?”

The barman replies “ For you , no charge ”.!

P

RADIOLOGICAL PROTECTION

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Basics - Poster 9

Average Annual Doses to the UK Population

Every 6 years or so , Public Health England ( PHE ) assesses the annual levels of radiation dose received by the UK population . The exposure to the different sources of radiation we live with comes predominantly from naturally occurring sources . The largest component of artificial ( made man sources ) is from medical exposure .

Average Dose UK 2010

Source of Exposure

Dose ( mSv )

Dental X-ray

0.005

100g bag of Brazil nuts

0.01

Chest X-ray

0.014

Transatlantic flight

0.08

Nuclear power station worker average

annual occupational exposure

0.18

Average annual radon dose in Cornwall

6.9

Source of Exposure

Dose ( mSv )

CT scan of the head

1.4

UK average annual radiation dose

2.7

USA average annual radiation dose

6.2

CT scan of the chest

6.6

Average annual radon dose

to people in Cornwall

6.9

Whole body CT scan

10.0

Information taken from the report PHE-CRCE-026 ( published April 2016 )

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IRPA

Incorporated by Royal Charter 2007 The UK Associate Society Affiliated to Registered Charity in England & Wales No 1122804