Background Radiation (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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Background radiation
Background radiation
Low-level radiation always present in environment
Cosmic rays
Cosmic rays
High-energy particles from outer space reaching Earth
Natural radioactive gas from underground rocks
Natural radioactive gas from underground rocks
Radon gas
Nuclear fallout
Nuclear fallout
Residual radioactive material from weapons tests/accidents
Medical radiation sources
Medical radiation sources
X-rays and radiation therapy
Unit for measuring radiation dose
Unit for measuring radiation dose
Sieverts (Sv)
Jobs with higher radiation exposure
Jobs with higher radiation exposure
Healthcare or nuclear industries
Locations with higher radiation levels
Locations with higher radiation levels
Areas with radon gas or near nuclear facilities
Alpha radiation ionising strength
Alpha radiation ionising strength
Strongly ionising
Alpha particle penetration
Alpha particle penetration
Stopped by dead skin cells
Beta radiation ionising strength
Beta radiation ionising strength
Moderately ionising, less than alpha
Beta particle penetration
Beta particle penetration
Can penetrate skin and enter body
Gamma radiation ionising strength
Gamma radiation ionising strength
Weakly ionising
Gamma ray penetration
Gamma ray penetration
Can penetrate deep into body and materials
Peer review
Peer review
Scientific studies evaluated by experts before publication to ensure accuracy and validity