RADIATION BEAM INTENSITY PROFILE SHAPER

An imaging system (500) includes a focal spot (510) that rotates along a path around an examination region (506) and emits radiation. A collimator (512) collimates the radiation, producing a radiation beam (516) that traverses a field of view (520) of the examination region and a subject or object t...

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Bibliographic Details
Main Authors LEVINSON, Reuven, KATCHALSKI, Tsvi, ROESSL, Ewald
Format Patent
LanguageEnglish
French
German
Published 30.10.2019
Subjects
DIAGNOSIS
GAMMA RAY OR X-RAY MICROSCOPES
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
IRRADIATION DEVICES
MEDICAL OR VETERINARY SCIENCE
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
PHYSICS
SURGERY
TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOTOTHERWISE PROVIDED FOR
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Summary:An imaging system (500) includes a focal spot (510) that rotates along a path around an examination region (506) and emits radiation. A collimator (512) collimates the radiation, producing a radiation beam (516) that traverses a field of view (520) of the examination region and a subject or object therein. A detector array (522), located opposite the radiation source, across the examination region, detects radiation traversing the field of view and produces a signal indicative of the detected radiation. A beam shaper (524), located between the radiation source and the collimator, rotates in coordination with the focal spot and defines an intensity profile of the radiation beam. The beam shaper includes a plurality of elongate x-ray absorbing elements (606) arranged parallel to each other along a transverse direction with respect to a direction of the beam, separated from each other by a plurality of material free regions (604).
Bibliography:Application Number: EP20130824011