Method for production control of collimator, involves generating two-dimensional projection data set by projecting the transverse profile characteristics of transverse profile data

摘要

#CMT# #/CMT# The method involves generating (S1) three-dimensional measurement data set (2) of collimator (K). The transverse profile data (3) of webs of the collimator is determined (S2). The transverse profile characteristics (4a,4b) of the transverse profile data is evaluated (S3). The two-dimensional projection data set (5) is generated (S4) by projecting the transverse profile characteristics of the transverse profile data. The two-dimensional projection data set is evaluated (S5). #CMT# : #/CMT# An independent claim is included for device for production control of collimator. #CMT#USE : #/CMT# Method for production control of collimator for stray radiation attenuation in computed tomography (CT) systems used in clinical and technical application. #CMT#ADVANTAGE : #/CMT# The high-quality inspection can be carried simply and reliably. The dimensional stability of the collimator can be improved. The efficient control of production of collimator can be ensured. The object properties of two-dimensional collimators can be reconstructed easily. The generation of uncertainties can be avoided. The edge of the collimator can be recognized easily. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows an explanatory view illustrating the process for production control of collimator. 2 : Measurement data set 3 : Transverse profile data 4a,4b : Transverse profile characteristics of transverse profile data 5 : Two-dimensional projection data set K : Collimator S1 : Step for generating three-dimensional measurement data set of collimator S2 : Step for determining transverse profile data of webs of collimator S3 : Step for evaluating transverse profile characteristics of transverse profile data S4 : Step for generating two-dimensional projection data set S5 : Step for evaluating two-dimensional projection data set.