Unit 3: Ionising Radiation - Reducing Effects
- Created by: rosieevie
- Created on: 11-04-15 21:34
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- Reducing Ionising Radiation Exposure
- Enclosing radioactive sources - ensures works have no direct contact = no contmaination
- Protective clothing, machinery handling and washing minimises contamination
- Absorbers prevent radiation reaching workers. Depends on type of radiation and space
- Reduce distance from sources - doubling distance reduces dose by a quarter
- Inverse square law - Dose received = 1/Distance^2
- Reduce exposure period
- Worker monitoring - personal-dose badges, photographic film badges (long-term exposure), air monitors (atmospheric particles) and contamination monitors (when staff leave work)
- Environmental sampling - check if radionuclides are becoming concentrated
- Chosen areas are most likely to be contaminated therefore a threat
- Soil, dust, water, grass, milk, meat, fish, vegetables tested
- Critical group monitoring - members of public most at risk tested
- Some things assessed are, living area, drinking water, food, leisure activities and workpalce
- Doesn't include people who are monitored at work
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