Abstract:
The present invention relates to a method for simply manufacturing a flexible grating sheet for X-ray phase contrast image without complicated facilities or processes by improving an existing lithography method and by manufacturing the grating sheet in a method of coating a material which can forms a curved surface. [Reference numerals] (AA,BB) Substrate; (CC) Cutting; (DD) Grating sheet; (EE) Enlarging; (FF) X-ray; (S10) Coating/Drying; (S20) Repeating; (S30) Removing the substrate/Cutting/Mirror finishing
Abstract:
The present invention relates to a hybrid X-ray detection device. The objective of the present invention is to provide a hybrid X-ray detection device with new configuration. The hybrid X-ray detection device has a simple structure, but the device can improve sensitivity against X-rays. Also, the device can acquire an image at a low dose and obtain a clear image with high-quality and high-resolution. In addition, the device has low sensitivity against environment by reducing the use of unstable photoconductor materials and can solve problems in a traditional TFT electrical switching reading method. To achieve the above-mentioned objective, the hybrid X-ray detection device comprises a light generator, which generates visible light to collect an image signal; a photostimulable phosphor, which generates and traps electrons corresponding to incident X-rays when the X-rays are emitted, and which generates and releases visible light corresponding to the electrons trapped when visible light is emitted from the light generator; a photoconductor layer for readout where electrons and positive holes are generated by incident visible light from the photostimulable phosphor; electrodes for applying voltage to the photoconductor layer for readout; and a signal detection circuit, which is connected to a signal collection electrode among the electrodes and reads an electrical signal output through the signal collection electrode.
Abstract:
The present invention relates to a method for manufacturing a flexible x-ray detector and a radiation detection apparatus having the flexible x-ray detector. The method for manufacturing an x-ray detector includes the steps of: arranging a plurality of pixel-type image sensors on a top of an auxiliary substrate, on which a sacrificial layer for selective etching is formed, bonding PolyDimethylsiloxane (PDMS) onto a resultant structure, and removing the auxiliary substrate through etching to manufacture a PDMS stamp on which a plurality of pixel-type image sensors are arranged; preparing a flexible substrate using a polymer resin containing a scintillator and forming a plurality of electrode wires on a top of the flexible substrate; combining the PDMS stamp, on which the image sensors are arranged, on the top of the flexible substrate so that the plurality of pixel-type image sensors are connected to the corresponding plurality of electrode wires of the flexible substrate; and manufacturing an x-ray detector, in which the image sensors are formed on the top of the flexible substrate, by removing the PDMS stamp. According to the present invention, the radiation detection apparatus capable of removing blur or smearing at an outer part of an x-ray image or preventing an image distortion to produce more clear and precise images can be provided.