Studied by 4 people
Radiographers
________ use X- rays and gamma rays to treat people with cancer.
Ultraviolet radiation
________ is produced by the sun, and exposure to it is what gives people a suntan.
X rays
________ pass easily through flesh but no so easily through denser material like bones or metal.
Security pens
________ can be used to mark property with you name, under UV light the ink will glow, but its invisible otherwise.
Fluorescence
________ is a property of certain chemicals, where ultra- violet radiation is absorbed and then visible light is emitted.
Gamma radiation
________ can also be used as a medical tracer- this is where a gamma- emitting source is injected into the patient, and its progress is followed around the body.
Fibre optic cables
________ use visible light to transmit data.
Radiographers
________ in hospitals take X- ray photographs of people to see if they have any broken bones.
X rays
Both ________ and gamma rays can be harmful to people so radiographers wear lead aprons and stand behind a lead screen or leave the room to keep their exposure to them to a minimum.
Ultraviolet radiation
________ gives you a suntan.
X rays
________ and gamma rays are used in medicine.
Note 
Flashcard (64)