beam collimation

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beam collimation,

the restriction of x-radiation to the area being examined or treated by confining the beam with metal diaphragms or shutters with high radiation-absorption power. In addition to protecting the patient and others from scatter radiation, beam collimation reduces radiographic density.

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No references found			Should the procedure be prolonged unexpectedly, the radiologist should consider enlarging the X-ray field size or altering the X-ray beam collimation. CPD questionnaire by South African Journal of Radiology w]/pitch Pitch is the distance the table travels per rotation divided by the beam collimation. Minimizing radiation risks with MDCT in neuroradiology by Buckingham, Cari; Strother, Megan K. / Applied Radiology It is estimated that dose reduction, beam collimation (control), rare-earth screens and filtration, carbon fiber materials, more extensive lead shielding, decrease in contrast resolution and use of a pulsed system in digital radiography and an array of constraining techniques in fluoroscopy could reduce exposure by several fold. X-Rays – What You Don't See & Feel Can Hurt You by Randy Wysong / Food/cooking/nutrition community			BE BE amputation be-still tree BEACH Beach Chair Position beach disease bead Bead Therapy beaded beaded hair Beaded Ureter beading beading of ribs Beadle Beads on a String Sign Beagle beak Beak Sign beaked pelvis beaker Beaker Cell Beaking Beals' syndrome BEAM beam alignment beam collimation beam hardening Beam Me Up, Scotty beam quality beam restrictor beam splitter beam therapy Beam-Hardening Artefact beam-splitting mirror Beamlet Bean Bean Bag Cell Bean Pot Cup Appearance Beano BEANS Bear bear cat Bear Claw Appearance bear foot bear grass Bear Hug Test bearberry beard beard tongue Bearded collie bearded dragon			Beam Approach Seeker Evaluation System Beam Assembly Teleoperator beam attack beam attenuator Beam axis Beam axis Beam axle Beam axle beam balance beam bearing plate beam blocking beam bolster beam bottom beam box beam box beam bracketing Beam Break Up beam brick Beam Bridge Beam bridges beam building beam casing beam ceiling Beam center Beam Change Trigger beam clamp beam clamp beam clamp beam clamp beam clip beam collimation Beam column Beam compass Beam compass beam compasses beam compasses Beam Congruency System Beam Correction Factor beam coupling beam current Beam Current Monitor beam cutoff angle Beam diameter Beam diameter Beam divergence beam down beam down beam down beam down beam drop beam edge beam efficiency Beam emittance beam encasement Beam engine beam engines Beam Equivalent Pressure beam expander Beam Experiment Aboard Rocket beam extractor beam fill

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