Matches 1 - 22 out of 22


Match Document Document Title
US20140146949 COLLIMATOR AND CT SYSTEM COMPRISING THE SAME  
A CT collimator comprising: a first gate and a second gate arranged in parallel on a slide rail, the first gate being fixed to a support rack of the CT collimator via elastic members; an...
US20150124938 Multi-leaf collimators  
A multi-leaf collimator for a radiotherapy apparatus comprises at least one array of laterally-spaced elongate leaves, each leaf being driven by an associated motor connected to the leaf via a...
US20110026683 Multi-leaf collimators  
A multi-leaf collimator for a radiotherapy apparatus comprises at least one array of laterally-spaced elongate leaves, each leaf being driven by an associated motor connected to the leaf via a...
US20140112453 MULTI LEVEL MULTILEAF COLLIMATORS  
A multilevel MLC includes a first set and a second set of a plurality of pairs of beam blocking leaves arranged adjacent one another. Leaves of each pair in the first set are disposed in an...
US20090262901 Multi-leaf collimators  
A multi-leaf collimator for a radiotherapy apparatus comprises at least one array of laterally-spaced elongate leaves, each leaf being driven by an associated motor connected to the leaf via a...
US20100034357 COLLIMATOR  
A collimator (1) primarily adapted for usage in a narrow scanned pencil beam radiation therapy system (100) includes adjacent pairs (5) of collimator leaves (10, 20). An inner portion (12) of a...
US20140010355 POSITION SENSORING METHOD AND SYSTEM FOR A MULTI-LEAF COLLIMATOR  
A multi-leaf collimator for radiation therapy in which the position of the leaves are determined by measuring a magnetic field allows to determine the leaf position with enhanced precision, and is...
US20090041199 Multileaf collimator and radiation therapy device  
The invention relates to a multileaf collimator having a plurality of leaves mounted displaceably in an adjusting direction for establishing a contour of a beam path. Each displaceably mounted...
US20090074148 Collimator for Defining a Beam of High-Energy Rays  
The invention relates to a collimator (1) for limiting a beam of high-energy radiation (2) which, starting from an essentially point-shaped radiation source (3), is directed onto an object (4) to...
US20100061519 SHUTTER MECHANISM FOR COLLIMATING X-RAYS  
A shutter mechanism for collimating x-rays has two parallel drive shafts and two parallel guide shafts orthogonal to the drive shafts to define a rectangular aperture. Two flexible bands moving...
US20090041200 Radiation therapy imaging and delivery utilizing coordinated motion of jaws, gantry, and couch  
A method of delivering a radiation therapy treatment plan to a treatment area of a patient. The treatment plan is delivered using a radiation therapy system including a moveable support for...
US20110293071 METHOD FOR CALCULATING HEAD SCATTER PHASE SPACE FOR RADIATION TREATMENT USING A MULTI-LEAF COLLIMATOR WITH DYNAMIC JAWS  
A method is proposed for accurate and efficient modeling of head scatter phase space for treatments with dynamic jaws. Specifically, the method enables the efficient calculation of the head...
US20140270069 REAL-TIME MOVING COLLIMATORS MADE WITH X-RAY FILTERING MATERIAL  
An apparatus includes an x-ray source operable to generate x-ray beams, a collimator comprising one or more leaves configured to modify the x-ray beams, a motorized system operable to move the one...
US20100046713 LEAF SEQUENCING ALGORITHM FOR MOVING TARGETS  
A method of providing intensity modulated radiation therapy to a moving target is disclosed. The target moves periodically along a trajectory that is projected onto a multi-leaf collimator (MLC)...
US20080292058 Device for Limiting Field on Which Radiation is Irradiated  
An irradiation field limiting device includes a plurality of aperture leaves arranged in a thickness direction, a flexible linear member secured to a thick portion of the aperture leaf, a driver...
US20130294583 X-Ray Collimator  
An X-ray collimator for controlling an X-ray radiation field, having a lower base member, a pair of regulating members, a pair of surrounding members having substantially U-shaped forms in planar...
US20080118032 OPTIMIZED APERTURE SELECTION IMAGING COMPUTED TOMOGRAPHY SYSTEM AND METHOD  
The invention provides a method and imaging system for operating imaging computed tomography using a radiation source and a plurality of detectors to generate an image of an object. The method...
US20100272238 Sysstem for reduction of exposure to X-ray Radiation  
To reduce X-ray exposure, an area of interest is selected in the image. The image of the selected area is updated frequently, comparable to rate of updates used today for the whole image. The rest...
US20170106211 COLLIMATOR FOR RADIOTHERAPY APPARATUS  
A collimator for a radiotherapy apparatus comprising a block of radiation-attenuating material having a front face forming the leading edge of the block and at least one main rear face defining...
US20170084359 MULTILEAF COLLIMATOR ASSEMBLY WITH REDUCED EXTRA-FOCAL LEAKAGE  
A multileaf collimator assembly employs one or more static blocks to significantly reduce extra focal leakage or out of field dose. The multileaf collimator assembly includes a plurality of pairs...
US20170040077 APPARATUS AND METHOD FOR VARIABLE ANGLE SLANT HOLE COLLIMATOR  
A variable angle slant hole (VASH) collimator for providing collimation of high energy photons such as gamma rays during radiological imaging of humans. The VASH collimator includes a stack of...
US20160071623 CONTOUR COLLIMATOR FOR RADIOTHERAPY  
The invention relates to a contour collimator for radiotherapy, comprising a plurality of plate-shaped diaphragm elements provided in a guiding block and movably arranged with respect to one...

Matches 1 - 22 out of 22