Abstract:
A driver circuit according to an embodiment of the present invention counts photons by classifying the photons depending on an energy band and outputs the counting result to a column line. The driver circuit comprises: a multiplexer receiving the results from a counter; a driving inverter receiving a signal from the multiplexer and a power supply unit; and a first switch connected between the power supply unit and an input terminal of the driving inverter.
Abstract:
PURPOSE: A digital silicon photomultiplier detector cell improves energy resolution by counting radiation at the outside in real time regardless of memory capacity and measuring the amount of the radiation. CONSTITUTION: A scintillator (110) generates light by receiving radiation. A detector unit (130) generates a digitalized detection signal by receiving light of a wavelength in a specific range. The detector unit includes a photodiode and an active reset part connected to the cathode of the photodiode. A read-out unit (150) transmits a generated output signal corresponding to the detection signal generated in the detector signal to an external circuit. The read-out unit does not store the detection signal within a detector cell.
Abstract:
PURPOSE: A paste is provides a radiation detector with excellent performance and a photoelectric conversion layer with excellent sensitivity and low dark current characteristics. CONSTITUTION: A paste includes a photoelectric conducting material (10); a binder which has a polymerization degree of 600-1100; and a solvent (30) dissolving the binder. The photoconductive material includes at least one selected from HgI2, PbI2, PbO, TlBr, CdTe, CdZnTe, CdS, and BiI3. The content of the binder is 1-50 parts by weight based on 100.0 parts by weight of the photoconductive material. A manufacturing method of the photoelectric conversion layer comprises a step of spreading the paste on a substrate; and a step of obtaining the photoelectric conversion layer by heat-treating the paste. [Reference numerals] (10) Photoconductive material; (20) Binder (600-1100 polymerization degree); (30) Solvent; (40) Addition agent
Abstract:
PURPOSE: A multi-energy radiation detector and a manufacturing method thereof are provided to form the thickness of two regions of a photoelectric conversion layer differently, thereby detecting radiation of different energy bands. CONSTITUTION: A multi-energy radiation detector (10) includes an array substrate (20) and a photoelectric conversion layer (30). The array substrate includes a plurality of unit circuits. The photoelectric conversion layer is arranged on the array substrate and includes two regions with different thicknesses. The photoelectric conversion layer includes a first region of which the thickness is relatively thin and a second region of which the thickness is relatively thick.
Abstract:
PURPOSE: A paste is provided to manufacture a photoelectric conversion layer with excellent properties, to obtain a high sensitive photoelectric conversion layer, and to obtain a radiation detector which has excellent performance. CONSTITUTION: A paste comprises photoconductive powder(10); a binder(20) which has adhesion by being mixed with the photoconductive powder; and a solvent which dissolves the solvent and provides fluidity. 80% or more of the photoconductive powder has a size of 2-30 micron. The 80% or more of the photoconductive powder has a size of 5-20 micron. The content of the binder in the mixture of the photoconductive powder and the binder is 2.5-12 wt%. The photoconductive conversion layer contains photoconductive powder and a binder having adhesion by being mixed with the photoconductive powder. [Reference numerals] (10) Photoconductive powder(2-30um); (20) Binder; (30) Solvent
Abstract:
PURPOSE: A pixel device, a radiation detecting module and an apparatus having the same are provided to maintain regularly the breakdown voltage of a photo diode and to improve energy resolution. CONSTITUTION: A voltage feeding unit(20) supplies voltage to a photo diode. The voltage feeding unit comprises a voltage storing unit(30) and a voltage regulating unit(40). A voltage storing unit is connected to the anode and stores a first anode voltage. The voltage regulating unit controls a second anode voltage to be same as the first anode voltage. The voltage storing unit includes a capacitor. [Reference numerals] (20) Voltage feeding unit; (30) Voltage storing unit; (40) Voltage regulating unit(closed loop); (50) Sensing unit; (60) Quenching unit; (70) Leadout unit; (AA) PC; (BB) PCb; (CC) SW2; (DD) Sw1
Abstract:
PURPOSE: A transistor, a manufacturing method thereof, and an electronic device including the same are provided to suppress the property variation of a transistor due to light and moisture by including a second passivation layer including fluorine. CONSTITUTION: A source(S1) and a drain(D1) are connected to both ends of a channel layer(C1). A gate(G1) corresponds to the channel layer. A gate insulation layer(Gl1) is formed between the channel layer and the gate. A first passivation layer(P11,P12) covers the source, the drain, the gate, and the gate insulation layer, and the channel layer. The second passivation layer is formed on the first passivation layer and includes fluorine.
Abstract:
PURPOSE: A pressure sensor using nanowire is provided to enable low-temperature deposition and implement a high-performance pressure sensor using a piezoelectric element with high transmittance and piezo-electric constant. CONSTITUTION: A pressure sensor using nanowire includes a transistor(130), a first electrode(120), a nanowire layer, and a second electrode(121). The transistor comprises an insulating layer, a channel, and a source/drain. The first electrode is connected to the source/drain of the transistor. The nanowire layer is composed of a plurality of piezoelectricity nanowires perpendicularly arranged on the first electrode. The second electrode comprises a second electrode arranged on the nanowire layer.
Abstract:
PURPOSE: An electronic device including an inductive coupling communication unit is provided to stably transmit and receive a signal with low power by reducing an eddy current. CONSTITUTION: A first silicon chip and a second silicon chip are successively laminated. A first inductor(112) is arranged on the first silicon chip. A second inductor(122) is arranged on the second silicon chip to correspond to the first inductor and is inductively coupled with the first inductor. A penetration hole(130) is formed on the second silicon chip and includes an inductive coupling communication unit to correspond to the first inductor. The penetration hole is formed in the second inductor. An insulator fills the penetration hole.
Abstract:
PURPOSE: An optical touch panel and a driving method thereof are provided to easily control a large display device with a simple light source device by constituting an optical sensing area with a light sensitive transparent oxide transistor. CONSTITUTION: An optical touch panel(10) comprises optical sensing areas(11s) sensing incident light. The optical sensing areas are formed into one body with pixels(11p) within a display panel or are formed above surface of the display panel. A light sensitive transparent oxide transistor is used as an optical sensor of the optical sensing areas. The light sensitive transparent oxide transistor comprises a gate electrode, a gate insulation film, a light sensitive transparent oxide semiconductor layer, and a source/drain electrode.