CT DETECTOR INCLUDING MULTI-LAYER FLUORESCENT TAPE SCINTILLATOR WITH SWITCHABLE SPECTRAL SENSITIVITY
First Claim
1. A method of manufacturing comprising:
- feeding a flexible array of optical detectors from a source reel;
disposing a scintillator layer comprising uncured scintillator material on the flexible array of optical detectors fed from the source reel; and
optically curing the scintillator layer comprising the uncured scintillator material disposed on the flexible array of optical detectors to generate a scintillator layer comprising cured scintillator material disposed on the array of optical detectors.
1 Assignment
0 Petitions
Accused Products
Abstract
A scintillator element (114) comprising uncured scintillator material (112) is formed and optically cured to generate a cured scintillator element (122, 122″). The uncured scintillator material suitably combines at least a scintillator material powder and an uncured polymeric host. In a reel to reel process, a flexible array of optical detectors is transferred from a source reel (100) to a take-up reel (106) and the uncured scintillator material (112) is disposed on the flexible array and optically cured during said transfer. Such detector layers (31, 32, 33, 34, 35) are stackable to define a multi-layer computed tomography (CT) detector array (20). Detector element channels (50, 50′, 50″) include a preamplifier (52) and switching circuitry (54, 54′, 54″) having a first mode connecting the preamplifier with at least first detector array layers (31, 32) and a second mode connecting the preamplifier with at least second detector array layers (33, 34, 35).
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Citations
29 Claims
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1. A method of manufacturing comprising:
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feeding a flexible array of optical detectors from a source reel; disposing a scintillator layer comprising uncured scintillator material on the flexible array of optical detectors fed from the source reel; and optically curing the scintillator layer comprising the uncured scintillator material disposed on the flexible array of optical detectors to generate a scintillator layer comprising cured scintillator material disposed on the array of optical detectors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A computed tomography (CT) detector array comprising:
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a stack of N detector array layers, each detector array layer comprising a scintillator layer comprising a scintillator material powder in a polymeric host disposed on an array of optical detectors; wherein at least N−
1 of the scintillator layers each have a thickness of 1000 microns or thinner. - View Dependent Claims (19, 20, 21, 22, 29)
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23. A computed tomography (CT) detector array comprising:
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a stack of detector array layers comprising a first sub-set of detector array layers having a first spectral response and a second sub-set of detector array layers having a second spectral response different from the first spectral response; and detector element channels each including a preamplifier and switching circuitry having (i) a first operational mode in which the preamplifier is operatively connected with at least detector elements of the first sub-set of detector array layers and (ii) a second operational mode in which the preamplifier is operatively connected with at least detector elements of the second sub-set of detector array layers. - View Dependent Claims (24, 25, 26, 27, 28)
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Specification