Uses of radiation (Edexcel GCSE Physics): Flashcards
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Radiation type for cancer treatment (radiotherapy)
Radiation type for cancer treatment (radiotherapy)
Gamma rays
Radiation types used as medical tracers
Radiation types used as medical tracers
Beta or gamma radiation
Half-life needed for medical tracers
Half-life needed for medical tracers
Short half-life
Radiation type for sterilising food & medical equipment
Radiation type for sterilising food & medical equipment
Gamma rays
Radiation type for thickness gauging
Radiation type for thickness gauging
Beta radiation
Why alpha not used for thickness gauging
Why alpha not used for thickness gauging
Fully blocked by material
Why gamma not used for thickness gauging
Why gamma not used for thickness gauging
Passes straight through without detecting changes
Radiation type for detecting leaks in pipes
Radiation type for detecting leaks in pipes
Gamma radiation
Radiation type in smoke alarms
Radiation type in smoke alarms
Alpha radiation
Effect of smoke on alpha particles in alarm
Effect of smoke on alpha particles in alarm
Smoke absorbs alpha particles, stopping current
Definition of half-life
Definition of half-life
Time for half of radioactive atoms to decay
Characteristic of short half-life sources
Characteristic of short half-life sources
Become safer faster but need replacing often
Half-life type for sterilisation sources
Half-life type for sterilisation sources
Long enough so doesn't need replacing often