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, False: work =force/distance, positrons are emitted in beta minus decay, p.d. = current, momentum = mass X acceleration, unit of power is joule, refraction only applies to transverse waves, pallitative care = radiation therapy, TIR= total internal refraction, all radiation is ionising,

Medical Physics Revision - True False

by Anonymous

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