Multi-lamellae collimator for use in irradiation device for generating irradiation field, particularly for removing tissue and treating tumor of patient by radiotherapy, has multiple lamellae for manipulation of medical irradiation field

摘要

#CMT# #/CMT# The multi-lamellae collimator (2) has multiple lamellae for manipulation of a medical irradiation field (6) that is expanded in beam direction (10). An upper collimator unit (24) and a lower collimator unit (26) are arranged at a distance from one another in the beam direction. The lamellae of each collimator unit are arranged in pairs in a displacement direction (36) transverse to the beam direction, and are strung together in a stacking direction transverse to the displacement direction and transverse to the beam direction. #CMT#USE : #/CMT# Multi-lamellae collimator for use in irradiation device for generating an irradiation field, particularly for removing the surrounding tissue and treating a tumor of patient by radiotherapy (Claimed). #CMT#ADVANTAGE : #/CMT# The multi-lamellae collimator has multiple lamellae for manipulation of a medical irradiation field that is expanded in beam direction, where the lamellae of each collimator unit are arranged in pairs in a displacement direction transverse to the beam direction, and are strung together in a stacking direction transverse to the displacement direction and transverse to the beam direction, and hence reduces radiation leakage, enhances variability of multi-lamellae collimator, and ensures efficient and compact size multi-lamellae collimator. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a sectional view of a radiation device with multi-lamellae collimator. 2 : Multi-lamellae collimator 6 : Medical irradiation field 10 : Beam direction 24 : Upper collimator unit 26 : Lower collimator unit 36 : Displacement direction.