Continuous moisture getter for solid state detector
A detector and solid-state technology, applied in instruments, measuring devices, scientific instruments, etc., can solve problems such as increasing system noise
Inactive Publication Date: 2009-06-24
KONINK PHILIPS ELECTRONICS NV
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Using forced air to cool the detector element can introduce dust and other contaminants while increasing system noise
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] refer to figure 1 , the illustrated gamma camera system 10 has a plurality of radiation detection heads 15a, 15b, 15c (collectively referred to as detection heads 15) disposed around an object inspection region 17. It should be understood, however, that each probe 15 may be configured to move relative to the other probe according to techniques known in the art, for example so that probe 15a is positioned opposite probe 15b, or at a distance of 90° relative to probe 15b. Any angle setting within the range of -180 degrees. A patient bed or other object support 21 selectively supports an area of interest of objects and objects to be inspected within the examination area 17 .
[0020] The probe head 15 is mounted to a rotatable frame portion 22 which is connected to a suitable motor and bearing assembly (not shown) supported by a fixed frame portion 23 . A rotatable gantry section 22 is used to rotate or index the probe head 15 around the inspection area. A number of m...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A nuclear camera system ( 10 ) includes a gantry ( 22, 23 ) disposed about an examination region ( 17 ) having detector heads ( 15 a,b,c) mounted to the gantry. The detector heads ( 15 ) include an enclosure ( 30, 34, 54, 56 ) defining a volume ( 61 ). A plurality of solid state detectors ( 40 ) are arranged in an array ( 36 ) within the enclosure volume. A first cold plate ( 46 ) is in thermally conductive contact with the plurality of solid state detectors. A first Peltier cooler ( 50 ) is in thermally conductive contact with the first cold plate, the first Peltier cooler provides for cooling the plurality of detectors in the array. A second cold plate ( 47 ) is located within the enclosure and is thermally insulated from first cold plate. A second Peltier cooler ( 52 ) is in thermally conductive contact with the second cold plate, the second Peltier cooler for removing moisture from the volume ( 61 ). A heat sink ( 56 ) is in thermally conductive contact with the first and second Peltier coolers. A sensor ( 64, 66, 68, 75 ) is in operative relationship with the detector head. The sensor ( 75 ) provides a signal indicative of an environmental condition within the interior volume of the detector head. A controller ( 24 ) is controllably connected to the sensor. The controller determines a modification, modification in response to the sensor signal, to a selected environmental condition within the interior volume of the detector head and provides a control instruction for the modification. An actuator ( 52, 66, 73 ) is in operative relationship with the interior volume of the detector and is controllably connected to the controller. The actuator implements a control instruction from the controller for modifying the selected condition within the detector head.
Description
technical field [0001] This invention relates to the cooling of solid state detectors in nuclear cameras, and in particular to an apparatus suitable for cooling the detectors and removing moisture. The invention can be applied, and certain aspects thereof, in connection with nuclear medicine diagnostic imaging systems. Background technique [0002] Gamma cameras, also known as nuclear cameras, are commonly used to measure gamma radiation emitted by the body being examined. By measuring this energy and the location of the gamma-ray emission, an image representing the gamma radiation emanating from the examined body can be created. Gamma rays are produced by introducing one or more radioactive nuclei to the region of interest in the patient's body. These radioactive nuclei decay to emit gamma radiation, characterized by photons of one or more characteristic energies. [0003] A nuclear gamma camera typically includes one or more detector heads that receive gamma radiation e...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/164G01T1/24
CPCG01T1/1648
Inventor O·塞雷布亚诺夫M·佩特里洛S·科拉
Owner KONINK PHILIPS ELECTRONICS NV