1/3
Looks like no tags are added yet.
state the components of a gamma camera
collimator
scintillator
light guide
photomultiplier tubes
circuits
computer
explain the gamma camera scanning process
gamma photons travel towards the collimator
arrive at an angle → absorbed
arrive along the axis of the tubes → reach the scintillator
gamma photons hit the scintillator
produces thousands of visible light photons
visible light photons travel through the light guide into the photomultiplier tubes
one photon is converted into a voltage signal
voltage signals generate an image depending on concentration of the tracer
state the difference between x-ray imaging and gamma imaging
x-ray imaging → shows anatomy
gamma imaging → shows functions and processes
n/a
n/a