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1. AU2002325184 - Method for restoring defective channels in multi-channel beam detectors

Office
Australie
Numéro de la demande 2002325184
Date de la demande 21.08.2002
Numéro de publication 2002325184
Date de publication 16.01.2003
Type de publication A
CIB
G01T 1/17
GPHYSIQUE
01MÉTROLOGIE; TESTS
TMESURE DES RADIATIONS NUCLÉAIRES OU DES RAYONS X
1Mesure des rayons X, des rayons gamma, des radiations corpusculaires ou des radiations cosmiques
16Mesure de l'intensité de radiation
17Dispositions de circuits non adaptés à un type particulier de détecteur
A61B 6/03
ANÉCESSITÉS COURANTES DE LA VIE
61SCIENCES MÉDICALE OU VÉTÉRINAIRE; HYGIÈNE
BDIAGNOSTIC; CHIRURGIE; IDENTIFICATION
6Appareils pour diagnostic par radiations, p.ex. combinés avec un équipement de thérapie par radiations
02Dispositifs pour établir un diagnostic dans des plans différents successifs; Diagnostic stéréoscopique utilisant des radiations
03Tomographes assistés par ordinateur
CPC
A61B 6/586
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
58Testing, adjusting or calibrating apparatus or devices for radiation diagnosis
586Detection of faults or malfunction of the device
A61B 6/027
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
02Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
027characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
A61B 6/032
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
02Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
03Computerised tomographs
032Transmission computed tomography [CT]
A61B 6/4021
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
40with arrangements for generating radiation specially adapted for radiation diagnosis
4021involving movement of the focal spot
Déposants SIEMENS AKTIENGESELLSCHAFT
Inventeurs Fuchs, Theobald
Kalender, Willi
Riess, Tillmann
Spreiter, Quirin
Von Der Haar, Thomas
Données relatives à la priorité 10143045 03.09.2001 DE
Titre
(EN) Method for restoring defective channels in multi-channel beam detectors
Abrégé
(EN)
The invention relates to a method for restoring a signal of a defective channel of a beam detector, which has a multitude of channels and by means of which projections are recorded from different directions of projection. The channels of the beam detector each have a detector element with channel electronics connected downstream therefrom. The signal of the defective channel is restored while using neighboring signals of an M-neighborhood of the same projection and from adjacent signals of an M-neighborhood of additional projections.