Gamma camera tungsten parallelcollimator is a thick plate of tungsten riddled with a large number of very
thin parallel channels. The gamma rays which can pass through it are those
whose direction is perpendicular to the surface of the tungsten plate and the
scintillating crystal. The channel axes point towards the body part under
examination, and the tungsten stops all gamma photons traveling at an oblique
angle. Other collimators can be designed using different techniques: a pinhole
collimator is used for thyroid scintigraphy scans, whereas fan-shaped
collimators are used for imaging of the brain.
Any enquiry will be
warmly welcome by email sales@chinatungsten.com.
