Publication Date: 2015-Dec-23
The IP.com Prior Art Database
A technique utilizing complete micro quick response (QR) code or segmented QR code for tracking a scintillator pack is disclosed. The complete micro QR code and the segmented QR code are applied on the scintillator reflector in order to track a scintillator pack definitely and throughout a detector manufacturing process and in the final detector array. A segmented QR code is placed on a corner of the scintillator pack to denote orientation. Further, the segmented QR code is applied for serialization and furnishing scintillator part information data. An imager or QR code reader is used to read the segmented QR code and an imaging algorithm is used to stitch the QR code together or regroup the QR code to produce a whole QR code image matrix. For implementation in scintillator pack production, laser etched QR code is used as orientation fiducial and laser etch machine is used to incorporate additional etching on pack surface so as to be used as fiducials for grid placement.
The present invention relates generally to a volume computed tomography (CT) detector and more particularly to a technique for tracking a scintillator pack throughout a CT detector manufacturing process.
Generally, volume computed tomography (CT) detectors are made up of multiple tile-able scintillator parts that are organized into a matrix. The scintillator matrices are called packs. The scintillator packs are required to be tracked throughout a manufacturing process of the detector, in order to properly array and configure the detector.
Further, pack marking is an essential part of scintillator pack manufacturing. However, pack marking is a time consuming step that is tends to generate errors during various manufacturing steps. In addition, if temporary sticky labels are applied on any part of the scintillator pack, the labels need to be removed from that part after use. Further, the part on which sticky label is applied needs to be cleaned with alcohol or acetone. Such cleaning process introduces a delay in the manufacturing process and also introduces a potential for handling damages.
A conventional CT detector manufacturing process uses two manually applied labels for marking the scintillator pack. One of the labels is used as a serial number (SN) identifier and the other is used for first column and first row location as an orientation identifier. Figure 1 depicts the manually applied labels.
There are some other conventional techniques known that provide advanced functionality associated with printed text and images. For example, a conventional technique relates to a system and method for presenting electronic information related to contents of a printed text on a device. The system and method facilitates use of or supplements information provided by the printed text.
Another conventional technique includes an optical information reader for settling a commercial transaction. The optical information reader reads and decodes with certainty a quick response (QR) code, which is displayed on a mobile telephone display of a buyer. However, such technique is not effective for tracking of the scintillator pack throughout the CT detector manufacturing process.
It would be desirable to have an efficient technique to track the scintillator pack throughout the CT detector manufacturing process.
BRIEF DESCRIPTION OF DRAWINGS
Figure 1 depicts manually applied labels for marking a scintillator pack.
Figure 2 depicts a one dimensional (1D) bar code and a barcode with a grid.
Figure 3 depicts a segmented QR code placed at a corner of the scintillator pack.
A technique utilizing complete micro quick response (QR) code or segmented QR code for tracking a scintillator pack is disclosed. The complete micro QR code and the segmented QR code are applied on a scintillator reflector in order to track a scintillator pack definitely and throughout a detector manufacturing process and in the final det...