True: ionising radiation can cause cell death, positrons are antimatter electrons, PET =positron emission tomography, BMR= the mimimum energy needed to stay alive, endoscopes use fibre optics, heart action can be measure by ECG, ultrasound is a type of radiation, refraction is a change of speed, gamma can be produced when electrons and positrons meet, intensity= power/ area, frequency=1/t, power=work/time,

Medical Physics Revision - True False

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