ANTI SCATTER RADIATION GRID FOR A DETECTOR HAVING DISCREET SENSING ELEMENTS

• Main Authors: DAVIS, JAMES E, LEE, DENNY L. Y
• Format: Patent
• Language: English; French
• Published: 11.04.2002
• Edition: 7
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; BASIC ELECTRIC ELEMENTS; CALCULATING; CINEMATOGRAPHY; COMPUTING; COUNTING; DIAGNOSIS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTROGRAPHY; GAMMA RAY OR X-RAY MICROSCOPES; HOLOGRAPHY; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; IRRADIATION DEVICES; MEASUREMENT OF NUCLEAR OR X-RADIATION; MEASURING; MEDICAL OR VETERINARY SCIENCE; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; SEMICONDUCTOR DEVICES; SURGERY; TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOTOTHERWISE PROVIDED FOR; TESTING

A shielding grid constructed of a radiation absorbing material for use with an array of discreet, non contiguous radiation sensors to protect such sensors from scattered radiation. The sensors each have a radiation sensitive area with a width (Ws) and length (Ls). In designing the grid a prototile (50) having a prototile width (Wp) is equal to the radiation sensitive area width (Ws) divided by an integer and the prototile length is also equal to the radiation sensitive area length divided by an integer. The prototile contain s a motif (52) contained solely within the prototile that forms a pattern when a plurality of prototiles sufficient to cover the array of discreet sensor are arrayed contiguously. The grid is constructed with the radiation absorbing material in this pattern.