摘要:
The present technique provides a multi-tile detector and a process for assembling the multi-tile detector using a flexible structure and intermediate electrical connections. The present technique minimizes edge gaps between adjacent detector tiles by coupling the detector tiles to the flexible structure and then flexing the flexible structure to close the edge gaps. Intermediate electrical connections, such as interlayer solder bumps, also may be used to minimize visible artifacts associated with tiling of the detector tiles. The present technique also may use a plurality of soldering materials having different melting temperatures to facilitate multiple soldering steps that are nondestructive of previous soldering steps.
摘要:
A method is provided for maximizing substrate usage in the fabrication of flat panel displays or detectors, while also maximizing electrostatic protection for the displays or detectors. Initially, at least two detectors are positioned on the substrate, with each of the detectors having a guard ring of a certain width. At least a section of the guard ring width of one detector is approximately adjacent to a section of the guard ring width of another detector. The approximately adjacent guard ring width sections are then positioned such that a maximum overlap of the adjacent guard ring width sections is achieved, while still providing each display or detector with electrostatic discharge protection. Each of the detectors is separated from the other detectors and the remainder of the substrate by the process of scribing partially through the substrate and breaking at the scribe mark or by sawing.
摘要:
The present invention, in one form, is a flexible interconnect circuit for altering the resolution of an imaging system. In one embodiment, by combining a plurality of detector array signal lines within the interconnect circuit, the imaging system resolution is altered. Each interconnect circuit includes a plurality of contacts at a first end and a second end and a plurality of conductors extending therebetween electrically connected to at least one contact at each end. By altering the number of contacts which are connected together, the resolution of the imaging system is altered.
摘要:
Systems and methods are provided for managing power consumption of a medical imaging detector by the use of triggering signals, environmental condition data, and/or determination of a variable time interval triggering event that is unique for each power consumption state. Systems and methods are provided for managing power and temperature of a device, after receiving a request for a function to be performed by the device determining an “on” trigger component, an “off” trigger component, associated circuits for performing the received function, providing power to the associated circuits upon the occurrence of the “on” trigger component, and removing power to the associated circuits upon the occurrence of the “off” trigger component. Further, an instruction is described for determining and displaying a variable time interval that is indicative of a time to change from one state to a desired state.
摘要:
An x-ray detector is provided to acquire an image. The x-ray detector comprises detector elements that store a charge representative of an x-ray level. The detector elements are arranged in rows and columns. Scan lines are arranged in rows or columns and connect to the detector elements. First and second sets of sensing circuits read the charge from the detector elements. A first set of data lines connects to the first set of sensing circuits and a second set of data lines connects to the second set of sensing circuits. At least one of the data lines from the first set of data lines is interspersed with the second set of data lines.
摘要:
A technique is provided for increasing the pixel pitch without increasing the interconnect density of a digital detector. Generally, a digital detector has an array of rows and columns of pixels, read out electronics and scan electronics, that are configured to generate and transmit signals based upon radiation impacting the detector. The detector also having a plurality of scan lines, which are coupled to the plurality of rows of pixels. The present technique also provides a multiplexing circuit for selectively coupling the rows of pixels to the respective scan lines for read out of the signals.
摘要:
A technique is provided for automatically initiating reset of a digital detector. Generally, a digital detector has an array of rows and columns of pixels, read out electronics and scan electronics, that are configured to generate and transmit signals based upon radiation impacting the detector. The technique incorporates an automatic reset circuit that provides state machines to implement a reset if no readout or scrub command is received within a set time interval, or if communication with a readout control circuit is not available. The technique also includes methods for monitoring inputs, and resetting the charge on the rows and columns of pixels.
摘要:
An imaging system is provided. In one embodiment, an imaging system includes a radiation source and a digital detector. The imaging system may also include first and second structures, each configured to receive the digital detector. Further, the imaging system may include system control circuitry configured to control exposure of the digital detector by the radiation source and to acquire image data from the digital detector. Additionally, the digital detector may be configured to communicate its location to the system control circuitry based on receipt of the digital detector by the first or second receiving structures. Additional systems, methods, and devices are also disclosed.
摘要:
A large area solid state x-ray detector employs a number of photodiodes that are charged electrically then discharged by exposure to x-ray. Ghost images resulting from release of charge trapped in photodiodes during prior exposures are eliminated by adjusting the biasing during a reset portion of the imaging cycle. Biasing may be increased to decrease the recharge time or reversed in polarity to evenly discharge the diodes or decreased to preserve the offset so that it may be removed from subsequent images by image processing.
摘要:
A large area solid state x-ray detector employs a plurality of cells arranged in rows and columns composed of photodiodes that are charged, exposed to x-rays which deplete their charge in proportion to the exposure, and then recharged to determine the amount of exposure. Fast scanning of the photodiodes consistent with the reduction of dark current effects is obtained without ghost images by employing a non-imaging scan following the imaging scan. The non-imaging scan employs a greater proportion of each scan duration for charge restoration than the imaging scan. In one embodiment simultaneous non-imaging recharging of the photodiodes is performed to substantially reduce this non-imaging time.