Class / Patent application number | Description | Number of patent applications / Date published |
250374000 | Including a radiant energy responsive gas discharge device | 77 |
20080210878 | Plasma Panel Based Radiation Detector - A radiation counting detector includes a first substrate and a second substrate that is generally parallel to first substrate and forms a gap with the first substrate. A gas is contained within the gap. A photocathode layer is coupled to one side of the first substrate and faces the second substrate. A first electrode is coupled to the second substrate and a second electrode is electrically coupled to the first electrode. A first impedance is coupled to the first electrode and a second impedance is coupled to the second electrode. A power supply is coupled to at least one of the electrodes. A first discharge event detector is coupled to the first impedance and a second discharge event detector is coupled to the second impedance. The radiation counting detector further includes a plurality of pixels, each capable of outputting a gas discharge pulse upon interaction with radiation received from the photocathode. Each gas discharge pulse is counted as having an approximately equal value. The radiation counting detector further includes circuitry for detecting if a gas discharge pulse is output from the pixels, and for counting each gas discharge pulse as an individual event. | 09-04-2008 |
20080283762 | Radiation detector employing amorphous material - A radiation detector is provided having an anode wire formed of an amorphous metal alloy. In one embodiment the radiation detector comprises a cathode assembly. The cathode assembly includes a main portion, a first end and a second end, where the first end opposes the second end. The cathode assembly also includes a radiation interacting material. An anode extends within the cathode assembly from the first end to the second end, and the anode is comprised of an amorphous metal alloy. | 11-20-2008 |
20090084972 | Gas Electron Multiplier and Manufacturing Method for Gas Electron Multiplication Foil Used for Same as Well as Radiation Detector Using Gas Electron Multiplier - To attain objects to reduce the spread of electrons as compared with a conventional one without degrading the multiplication factor of electrons; to provide a large electron multiplication factor; and to improve positional resolution, there is provided a gas electron multiplier using interaction between radiation and gas through photoelectric effects including: a chamber filled with gas and a single gas electron multiplication foil arranged in the chamber wherein the gas electron multiplication foil is made of a plate-like multilayer body composed by having a plate-like insulation layer made of a macromolecular polymer material having a thickness of around 100 μm to 300 μm and flat metal layers overlaid on both surfaces of the insulation layer, and the plate-like multilayer body is provided with a through-hole structure. | 04-02-2009 |
20090206267 | PLASMA PANEL BASED IONIZING RADIATION DETECTOR - A radiation detector is formed from a plasma panel that includes a front substrate, and a back substrate that forms a generally parallel gap with the front substrate. X (column) and Y (row) electrodes are coupled by gas discharge events to define one or more pixels. Impedances are coupled to the X and Y electrodes, and a power supply is coupled to one or both types of electrodes. Discharge event detectors are coupled to the impedances. | 08-20-2009 |
20090321652 | RADIATION DETECTOR USING GAS AMPLICATION AND METHOD FOR MANUFACTURING THE SAME - A radiation detector using gas amplification includes: a first electrode pattern which is formed on a first surface of an insulating member and has a plurality of circular openings; and a second electrode pattern which is formed on a second surface of the insulating member opposite to the first surface thereof and has convex portions of which respective forefronts are exposed to centers of the openings of the first electrode pattern; wherein a predetermined electric potential is set between the first electrode pattern and the second electrode pattern; wherein edges of the first electrode pattern exposing to the openings are shaped in respective continuous first curved surfaces by covering the edges thereof with a first solder material. | 12-31-2009 |
20110114848 | SYSTEM AND METHOD FOR IONIZING RADIATION DETECTION - An ionizing radiation detection system can include a self-quenching sensing element having a substantially sealed enclosure containing a plurality of gases. The plurality of gases can include an ionizing gas to ionize in response to receiving a particle of ionizing radiation. The plurality of gases can also include a halogen quenching gas. In a particular embodiment, the plurality of gases can include an oxygen-containing gas in an amount of at least approximately 5% by pressure of a total pressure of the plurality of gases. In another particular embodiment, the partial pressure of the oxygen-containing gas can be from approximately 2666 Pa to approximately 16000 Pa. In another embodiment, the radiation detection system can include an anode having a composition that is more resistant to erosion by gasses within the sensing element. | 05-19-2011 |
20110278468 | Neutron Detectors For Active Interrogation - The present invention includes a method for radiation detection. The present invention utilized boron-coated detectors as a new alternative to large | 11-17-2011 |
20120261585 | Capacitive Spreading Readout Board - A readout board for use in a micropattern gas detector comprises a plurality of detector pads arranged into a plurality of consecutive layers that are separated by dielectric spacer material. An electron cloud hitting the front side of the readout board will induce a charge on one of the detector pads of the uppermost layer. By capacitive coupling, the signal will propagate downwards through the consecutive layers until it reaches the bottom layer, from which the charges are read out and analyzed. The position of the impact can be determined by comparing the charges that have spread to neighboring readout pads. Since only the bottommost layer of the readout pads needs to be connected to readout electronics, incident particles can be localized at high precision despite the relatively large size of the readout pads in the bottom layer. The invention is effective both in a gas electron multiplier (GEM) and in a MicroMegas detector. | 10-18-2012 |
20130146779 | Micro Ion Chamber - A micro sized ionization chamber that serves as a radiation detector for use in hard X-ray beamline applications. It is the simplest of all devices in this category. The small size allows for closer placement to the sample being measured, without sacrificing the accuracy and componentry of a larger sized, gas filled ionization chamber. | 06-13-2013 |
20130256550 | SELF-HEATING ELECTROMETER FOR HIGH PRESSURE ION CHAMBER FOR VERIFICATION OF TEMPERATURE COMPENSATION - An apparatus and method for verifying the temperature compensation correction factor accuracy of an electrometer is provided. The electrometer includes an electrical amplifier to convert a current signal to a voltage signal. The electrometer also includes a compensation circuit to modify the voltage signal for temperature compensation. The electrometer further includes a heat producing device to induce a temperature change of the electrical amplifier and the compensation circuit. An environmental radiation monitor is also provided. The environmental radiation monitor includes a power supply, a high pressure ionization chamber, and the electrometer. The method includes providing an environmental radiation monitor, measuring the voltage signal at a first time, activating a heat producing device, measuring the voltage signal at a second time, and comparing the two measured values of the voltage signal. | 10-03-2013 |
20140084177 | RADIATION DETECTOR - The radiation detector includes: a housing defining an enclosed space filled with a radiation detection gas; first and second electrodes opposing each other across the enclosed space; insulating materials covering surfaces of the first and second electrodes facing the enclosed space; and a voltage source for applying a voltage to the first and second electrodes, whereby a radiation sensor is formed. The radiation sensor is configured so that: in a radiation detection period, a predetermined voltage is applied between the first and second electrodes, and an electric charge is accumulated on the insulating materials by ions and/or electrons generated by ionization of the gas by incident radiation; and in a radiation measurement time, an electric discharge is caused by applying a reverse bias voltage from that applied to the first and second electrodes in the radiation detection period, and a firing voltage is measured. | 03-27-2014 |
20140103221 | METHOD OF DEPOSITING BORON ON SHEET METAL FOR NEUTRON DETECTION APPARATUS OR IONIZATION CHAMBER - The invention is a method of depositing a solid layer ( | 04-17-2014 |
20140183372 | SYSTEM AND METHOD FOR IONIZING RADIATION DETECTION - An ionizing radiation detection system can include a self-quenching sensing element having a substantially sealed enclosure containing a plurality of gases. The plurality of gases can include an ionizing gas to ionize in response to receiving a particle of ionizing radiation. The plurality of gases can also include a halogen quenching gas. In a particular embodiment, the plurality of gases can include an oxygen-containing gas in an amount of at least approximately 5% by pressure of a total pressure of the plurality of gases. In another particular embodiment, the partial pressure of the oxygen-containing gas can be from approximately 2666 Pa to approximately 16000 Pa. In another embodiment, the radiation detection system can include an anode having a composition that is more resistant to erosion by gasses within the sensing element. | 07-03-2014 |
20140209810 | ION CHAMBER ENCLOSURE MATERIAL TO INCREASE GAMMA RADIATION SENSITIVITY - A radiation detection assembly that includes an ionization chamber having a cathode and an anode. The ionization chamber detects radiation that passes into the ionization chamber. The assembly includes an exterior enclosure defining a hollow internal volume within which the ionization chamber is enclosed. The exterior enclosure includes at least two layers. At least one of the layers provides an electromagnetic shield to the hollow internal volume and the ionization chamber enclosed therein. | 07-31-2014 |
20140239185 | DETECTOR-READOUT INTERFACE FOR AN AVALANCHE PARTICLE DETECTOR - A detector-readout interface for an avalanche particle detector comprises a resistive layer formed at a bottom side of a gas chamber and a dielectric layer formed under said resistive layer and is adapted for capacitive coupling to an external readout board. This provides a modular detector configuration in which the readout card and detector core can be combined freely and interchangeably. The readout board can even be removed or replaced without switching off the detector. At the same time, the configuration provides an effective protection against sparks and discharges, and in particular obliviates the need for additional protecting circuits. The configuration may be employed in any avalanche particle detector, such as the MicroMegas or GEM detectors. | 08-28-2014 |
20140291537 | AN IONIZATION CHAMBER - The invention relates to an ionization chamber ( | 10-02-2014 |
20150115165 | DOSE-RATE MEASURING SYSTEM - In order to obtain a dose-rate measuring system that reduces an influence of an electromagnetic induction noise acting around an ionization chamber and a signal converter, a cabinet of the ionization chamber, shields of cables, a cabinet of the signal converter, and a cabinet of a measuring unit are connected in series, and a single-point ground is performed at the measuring unit, and other units except the grounded measuring unit are insulated from the earth, and moreover, a heatproof insulating material having water repellency is coated on a fixed portion of the ionization chamber, whereby the ionization chamber is electrically insulated from a chassis at a fixed side, and the heatproof insulating material having water repellency is coated on a connecting portion of a connector for connecting a cable to another cable, after a waterproof process is performed on the connecting portion by using a bonding tape. | 04-30-2015 |
20150115166 | Radiation Detector - This application describes a radiation detector apparatus comprising: at least one optical fibre ( | 04-30-2015 |
20150380224 | ELECTRONIC AMPLIFYING SUBSTRATE AND METHOD OF MANUFACTURING ELECTRONIC AMPLIFYING SUBSTRATE - An electronic amplifying substrate, including: a glass base material having an insulating property; conductive layers formed on both main surfaces of the glass base material; and a plurality of through holes formed on a lamination body of the glass base material and the conductive layer, wherein an electric field is formed in the through hole by a potential difference between both conductive layers during application of a voltage to a surface of the conductive layer so that an electron avalanche amplification occurs in the through hole, and an insulation part is formed on at least one main surface of the glass base material, with one of the end portions of the insulation part formed to surround an opening part of the through hole of the glass base material, and the other end portion formed in contact with the end portions of the conductive layers. | 12-31-2015 |
20160047918 | PLASMA PANEL BASED RADIATION DETECTOR - A position-sensitive radiation counting detector includes a first and a second substrate. A gas is contained within the gap between the substrates. A photocathode layer is coupled to the first substrate and faces the second substrate. A first electrode is coupled to the second substrate and a second electrode is electrically coupled to the first electrode. A first impedance is coupled to the first electrode and a power supply is coupled to at least one electrode. A first discharge event detector is coupled to one of the electrodes for detecting a gas discharge event in the electrode. The radiation counting detector further includes a plurality of pixels, each capable of outputting a gas discharge counting event pulse upon interaction with radiation received from the photocathode. Each gas discharge pulse is counted as having an approximately equal value. | 02-18-2016 |
20160170078 | Large Scale Gas Electron Multiplier and Detection Method | 06-16-2016 |
20160252627 | GEIGER-MULLER TUBE | 09-01-2016 |
250375000 | Methods | 27 |
20090206268 | METHOD OF INCREASING THE CONVERSION EFFICIENCY OF AN EUV AND/OR SOFT X-RAY LAMP AND A CORRESPONDING APPARATUS - The present invention relates to a method of increasing the conversion efficiency of an EUV and/or soft X-ray lamp, in which a discharge plasma ( | 08-20-2009 |
20090261265 | APPARATUS AND METHOD FOR ARRAY GEM DIGITAL IMAGING RADIATION DETECTOR - An array gas electron multiplier (GEM) digital imaging radiation detector and a control method thereof are disclosed. The array gas electron multiplier (GEM) digital imaging radiation detector includes an array GEM detector. The array GEM detector includes: an ionized electron generation unit for generating ionized electrons in internal filling gas by incident X-rays or gamma rays or by incident charged particles; a gas electron multiplication unit for multiplying the ionized electrons of the ionized electron generation unit in filling gas inside hole of a gas electron multiplier (GEM), through electron avalanche effect, using the GEM, to form electron clouds; a readout for detecting and outputting coordinates of the electron clouds as the readout receives positions through electrical signals, in which the positions of the electron clouds, being multiplied and formed in the gas electron multiplication unit, reach output electrodes. Therefore, the present invention can multiply ionized electrons of internal filling gas as a gas electron multiplier (GEM) generates an electron avalanche effect in the hole thereof, in which the ionized electrons are generated as a photo-electron effect or a Compton effect is induced by high energy incident light, such as X-rays or gamma rays, or which are directly generated by incident charged particles, and can convert image information of the inside or outside of an target object into images of two-dimensions, in real time, such that the detector can be properly used as a security search apparatus in a harbor or an airport, or can be adapted as a core part of industrial nondestructive testing apparatus. | 10-22-2009 |
20090278053 | PLASMA PANEL BASED IONIZING-PHOTON RADIATION DETECTOR - A plasma panel based ionizing-photon radiation detector includes an input and output substrate with gamma-ray to free-electron conversion occurring primarily on the input plate and a sealed discharge gas between the substrates. X-electrodes and Y-electrodes are formed on the two substrates and configured to form a plurality of pixels. Impedances are coupled to the X and Y electrodes and a power supply is coupled to the X-electrodes. Discharge event detectors coupled to impedances detect discharge events on the Y electrodes and at the pixel locations, which leads to the detection of ionizing-photon radiation. | 11-12-2009 |
20100155616 | PLASMA PANEL BASED RADIATION DETECTOR - A radiation counting detector includes a first substrate and a second substrate that is generally parallel to first substrate and forms a gap with the first substrate. A gas is contained within the gap. A photocathode layer is coupled to one side of the first substrate and faces the second substrate. A first electrode is coupled to the second substrate and a second electrode is electrically coupled to the first electrode. A first impedance is coupled to the first electrode and a second impedance is coupled to the second electrode. A power supply is coupled to at least one of the electrodes. A first discharge event detector is coupled to the first impedance and a second discharge event detector is coupled to the second impedance. The radiation counting detector further includes a plurality of pixels, each capable of outputting a gas discharge pulse upon interaction with radiation received from the photocathode. Each gas discharge pulse is counted as having an approximately equal value. The radiation counting detector further includes circuitry for detecting if a gas discharge pulse is output from the pixels, and for counting each gas discharge pulse as an individual event. | 06-24-2010 |
20100187431 | PLASMA PANEL BASED IONIZING RADIATION DETECTOR - A radiation detector is formed from a plasma panel that includes a front substrate, and a back substrate that forms a generally parallel gap with the front substrate. X (column) and Y (row) electrodes are coupled by gas discharge events to define one or more pixels. Impedances are coupled to the X and Y electrodes, and a power supply is coupled to one or both types of electrodes. Discharge event detectors are coupled to the impedances. | 07-29-2010 |
20100314548 | METHOD AND DEVICE FOR DETECTION AND IDENTIFICATION OF GASES - It is an object of the invention to develop a generic method for identification of gases and a corresponding device, which has a simple structure and allows immediate and simultaneous detection of the chemical compounds to be tested, and which uses for identification the material-specific mobility and simultaneously the change in this mobility as a function of the electric field strength. | 12-16-2010 |
20110147603 | RADIATION DETECTION APPARATUS - A radiation detection apparatus includes a radiation detection unit that detects a first intensity of a radiation that has been transmitted through an inspection target to generate a first measurement value, the inspection target being disposed between a radiation source that irradiates the radiation and the radiation detection unit, a transmission ionization chamber that detects a second intensity of the radiation that has not reached the inspection target to generate a second measurement value, the transmission ionization chamber having an enclosed structure, the transmission ionization chamber being disposed between the radiation source and the inspection target, the transmission ionization chamber including an entrance window through which the radiation enters the transmission ionization chamber and an exit window through which the radiation goes out of the transmission ionization chamber, and an operation unit that calculates a physical quantity of the inspection target. | 06-23-2011 |
20110315889 | BETA RADIATION MONITOR AND METHOD - A beta radiation monitor ( | 12-29-2011 |
20120032089 | METHOD FOR DETECTING HIGH-ENERGY RADIATION USING LOW VOLTAGE OPTIMIZED ION CHAMBER - A method for measuring high-energy radiation flux, comprising applying a low voltage to electrodes in an ion chamber filled with a fluid capable of forming ions through the interaction of the fluid with high energy radiation; measuring an ion current signal related to an ion current induced by the low voltage; determining a leakage current; determining a gain; determining a magnitude of the high-energy radiation flux based on the ion current signal, gain, and leakage current; and outputting the result of the magnitude of the high-energy radiation flux. | 02-09-2012 |
20120104269 | NOBLE-GAS-EXCIMER DETECTORS OF SLOW NEUTRONS - The present invention relates to apparatus and methods for use in highly sensitive and efficient neutron detection, that includes using trigger reactions to initiate far-ultraviolet (FUV) optical emissions. In some embodiments of the present invention, a method for the detection of slow neutrons includes absorption of a slow neutron with a high neutron capture-cross-section nucleus, decay of the compound nucleus into energetic particles, creation of excimers from the energetic particles reacting with a background gas to form excimers, radiative decay of excimers resulting in emission of FUV radiation, and detection of the FUV radiation using an optical detector. | 05-03-2012 |
20120205548 | PLASMA PANEL BASED RADIATION DETECTOR - A position-sensitive radiation counting detector includes a first and a second substrate. A gas is contained within the gap between the substrates. A photocathode layer is coupled to one side of the first substrate and faces the second substrate. A first electrode is coupled to the second substrate and a second electrode is electrically coupled to the first electrode. A first impedance is coupled to the first electrode and a second impedance is coupled to the second electrode. A power supply is coupled to at least one electrode. A first discharge event detector is coupled to the first impedance and a second discharge event detector is coupled to the second impedance. The radiation counting detector further includes a plurality of pixels, each capable of outputting a gas discharge pulse upon interaction with radiation received from the photocathode. | 08-16-2012 |
20120228514 | PROTON IRRADIATION USING SPOT SCANNING - In one embodiment of the invention, a method for irradiating a target is disclosed. A proton beam is generated using a cyclotron. A first information is provided to an energy selection system. An energy level for the protons is selected using an energy selection system based on the first information. The first information comprises a depth of said target. The proton beam is routed from the cyclotron through a beam transfer line to a scanning system. A second information is provided to the scanning system. The second information comprises a pair of transversal coordinates. The proton beam is guided to a location on the target determined by the second information using a magnet structure. The target is irradiated with the protons. | 09-13-2012 |
20120248322 | METHODS OF ELECTRICAL SIGNALING IN AN ION ENERGY ANALYZER - A method of generating a signal representing with an ion energy analyzer for use in determining an ion energy distribution of a plasma. The ion energy analyzer, used for determining an ion energy distribution of a plasma, includes a first grid and a second grid that is spaced away from and electrically isolated from the first grid. The first grid forms a first surface of the ion energy analyzer and is positioned to be exposed to the plasma. The first grid includes a first plurality of openings, which are dimensioned to be less than a Debye length for the plasma. A voltage source and an ion current meter are operably coupled to the second grid, the latter of which is configured to measure an ion flux onto the ion collector and to transmit a signal that represents the measured ion flux. The method includes selectively and variably biasing the second grid relative to the first grid. | 10-04-2012 |
20130240748 | PLASMA PANEL BASED IONIZING RADIATION DETECTOR - A radiation detector is formed from a plasma panel that includes a front substrate, and a back substrate that forms a generally parallel gap with the front substrate. X (column) and Y (row) electrodes are coupled by gas discharge events to define one or more pixels. Impedances are coupled to the X and Y electrodes, and a power supply is coupled to one or both types of electrodes. Discharge event detectors are coupled to the impedances. | 09-19-2013 |
20140117246 | APPARATUS AND METHOD FOR DETECTING RADIATION - Apparatus and method for detecting radiation-of-interest, such as neutron radiation, employs a gas chamber, a gas that responds to ionizing particles by producing electrons and ions, a cathode that attracts ions, and a supporting layer with a conductive pathway. The conductive pathway collects electrons and responds to electrons that drift towards the conductive pathway by inducing production of further electrons and ions within the gas. The electrons that are collected at the conductive pathway and/or the ions that drift away from the conductive pathway will induce an electrical signal, which can be used to detect the radiation-of-interest. | 05-01-2014 |
20140158895 | PULSE-SHAPE DISCRIMINATION OF NEUTRONS USING DRIFT TUBES - Apparatus and method for separating neutron-induced | 06-12-2014 |
20140197323 | ENCLOSURE PRESSURE RELIEF MECHANISM INHERENT TO CASE DESIGN - A radiation detection assembly includes an ionization chamber for detecting radiation. The ionization chamber includes a volume of pressurized gas. An exterior enclosure houses the ionization chamber within an interior volume. The exterior enclosure includes a frangible section. A relief assembly defines a gas flow path from the ionization chamber to the frangible section of the exterior enclosure. The frangible section releases pressure from within the ionization chamber when the pressurized gas within the ionization chamber exceeds a predetermined pressure such that at least some of the pressurized gas flows through the relief assembly and through the frangible section of the exterior enclosure. The pressurized gas is then released to an exterior of the exterior enclosure. A method of reducing pressure within a radiation detection assembly is also provided. | 07-17-2014 |
20140209811 | WIDE DYNAMIC RANGE BIDIRECTIONAL INTEGRATING ELECTROMETER WITH LOW LEAKAGE SOLID-STATE RESET AND RANGE CHANGE OPERATING OVER AN EXTENDED TEMPERATURE RANGE - A radiation monitor includes an ionization chamber for detecting radiation that passes into the ionization chamber. The ionization chamber generates a current flow in response to the detected radiation. An electrometer is electrically connected to the ionization chamber for measuring the current flow generated by the ionization chamber. The electrometer is operable in a plurality of modes based on a magnitude of the current flow generated by the ionization chamber. A method of measuring current flow through an electrometer of a radiation monitor is also provided. | 07-31-2014 |
20140264056 | SYSTEMS AND METHODS FOR ASSAYING AN ELUATE FOR TECHNETIUM AND MOLYBDENUM CONTENT - A system for assaying an eluate for Technetium-99m and Molybdenum-99 content includes an inner ionization chamber including a well configured to receive the eluate, an outer ionization chamber concentric with the inner ionization chamber, and attenuating material positioned between the inner and outer ionization chambers. A computing device is configured to determine a Technetium-99m content of the eluate based on a first current measured in the inner ionization chamber, and determine a Molybdenum-99 content of the eluate based on at least a second current measured in the outer ionization chamber. | 09-18-2014 |
20150041665 | PROTON DOSE IMAGING METHOD AND APPARATUS - Particle therapy systems and methods for particle dose imaging are provided. A particle therapy system includes a particle beam source for generating a particle beam; and at least one particle detector including an ionization chamber having a mesh electrode. The at least one particle detector is configured to receive the particle beam and to generate an ionization current responsive to the received particle beam. The ionization current may be used to characterize the particle beam. | 02-12-2015 |
20150060684 | SYSTEMS AND METHODS FOR ASSAYING AN ELUATE FOR TECHNETIUM AND MOLYBDENUM CONTENT - A system for assaying an eluate for Technetium-99m and Molybdenum-99 content includes an inner ionization chamber including a well configured to receive the eluate, an outer ionization chamber concentric with the inner ionization chamber, and attenuating material positioned between the inner and outer ionization chambers. A computing device is configured to determine a Technetium-99m content of the eluate based on a first current measured in the inner ionization chamber, and determine a Molybdenum-99 content of the eluate based on at least a second current measured in the outer ionization chamber. | 03-05-2015 |
20150115167 | METHOD FOR RADIATION DETECTION SIGNAL PROCESSING - The invention relates to a method for radiation detection signal processing, and more particularly to a method capable of using a periodic signal to control the time of charging/discharging to a capacitor of an integrator. The method can be used for detecting the energy of incident photon of Gamma ray during the happening of an event while reducing dead time, and thereby, the count rate is increased. As the periodic signal is used as the signal for controlling the time of charging/discharging to a capacitor, the charging/discharging time of the integrator is no longer being controlled by the triggering time of the event, and thus, the present method is advantageous in that: the control method and circuit architecture are comparatively simpler since the charging/discharging time of the integrator no longer required to be controlled precisely, and thus the integration error due to insufficient resolution in delay element can be avoided. | 04-30-2015 |
20160041271 | RADIATION DETECTOR AND METHOD - Disclosed is a radiation detector, comprising a chamber or cavity that produces charge carriers when radiation is incident thereon. The chamber is defined in part by a deformable plate along one side of the chamber or cavity; and a rigid plate spaced and electrically insulated from the deformable plate. A charging voltage source is present for applying a voltage to the deformable plate; such that wherein the deformable plate is attracted toward the rigid plate by electrostatic forces when charged by the charging voltage source, and moves away from the rigid plate when charge carriers produced in the chamber or cavity by incident radiation reduce the electrostatic forces between the deformable and rigid plates. | 02-11-2016 |
20160133447 | METHOD FOR DETECTING AND DISTINGUISHING BETWEEN SPECIFIC TYPES OF ENVIRONMENTAL RADIATION USING A HIGH PRESSURE IONIZATION CHAMBER WITH PULSE-MODE READOUT - An environmental radiation detector for detecting and distinguishing between all types of environmental radiation, including photons, charged particles, and neutrons. A large volume high pressure ionization chamber (HPIC) includes BF | 05-12-2016 |
20160178760 | Switching Frequency Extended Range Geiger Detection System and Method | 06-23-2016 |
20160377739 | METHOD, SYSTEM AND APPARATUS FOR PROVIDING AN ELECTRONIC SIGNAL FOR THE SURVEILLANCE AND TESTING OF GEIGER-MULLER RADIATION SENSORS - A method, system and/or apparatus for remotely monitoring the operation of a radiation sensor may include a radiation sensor configured to detect a presence of radiation in the area, the radiation sensor including a Geiger-Muller tube, a test signal generator configured to generate a high frequency test signal used to test the radiation sensor, the high frequency test signal transmitted to the radiation sensor, and a test signal detector configured to detect a response of the radiation sensor to the test signal, and determine whether the radiation sensor is operating correctly. | 12-29-2016 |
20160377747 | MUON TRACKER AND MUON TRACKING METHOD - A muon tracker includes a drift tube detector having a plurality of drift tube arrays, a detection time-difference calculation circuit configured to calculate a detected time-difference between a plurality of time data detected at least two of the drift tubes, a time-difference information database that stores a relationship between a plurality of predetermined tracks of the muon passing the drift tube detector and a predetermined time-difference of possible detected time data to be detected at least two of the drift tubes where each of the plurality of predetermined tracks passes, a time-difference referring circuit configured to refer the detected time-difference calculated at the detection time-difference calculation circuit with the predetermined time-difference stored in the time-difference information database, and a muon track determining circuit configured to determine a muon track as the predetermined track of the muon corresponding to the predetermined time-difference that matches the best with the detected time-difference. | 12-29-2016 |
250379000 | With means to supply the gas | 4 |
20080210879 | Method for Controlling Leakage Rate of Active Carbon Filters - The invention concerns a method for measuring the leakage rate of an activated carbon filter, characterised in that it comprises the following steps:
| 09-04-2008 |
20090242783 | Non-Radioactive Electron Capture Detector for GC - Electron capture detector for use with an effluent stream from a gas chromatograph includes a non-radioactive electron source means and an adjacent ionization chamber in which electron capture take place. The detector comprises two partial chambers, of which one contains the electron source, and the other contains connections for input and output of analysis gas as well as a collector electrode for detecting ions. The collector electrode and the electron source are each of cylindrical configurations, and are coaxially aligned but are spaced apart with respect to each other. The electron current to the collector electrode provides an indication of the presence of electronegative constituents in the gas passing into the second partial chamber. | 10-01-2009 |
20160047919 | RADIATION DETECTION APPARATUS - A method of measuring ionizing radiation may include the steps of: a) creating charged particles; b) causing the charged particles to generate the electrons; c) collecting at least a portion of the multiplied free electrons using at least two anode pads provided within the chamber, each anode pad producing a corresponding anode output signal, to provide higher sensitivity; and d) recording each anode output signal. | 02-18-2016 |
250380000 | Radioactive gas, or with gas-borne radioactive material | 1 |
20140021363 | APPARATUS FOR MEASURING RADIOACTIVITY OF RADIOACTIVE SAMPLE WITHOUT LOSS OF RADIOACTIVE PARTICLES - Provided is an apparatus for measuring radioactivity without loss of radioactive particles. The apparatus includes a sampler that collects a radioactive sample from an exhaust pipe, a sample detector that is provided adjacent to the exhaust pipe and includes a particle collecting filter and a first radioactivity detector, sample transporting pipe that extends from the sample detector and transports the radioactive sample from which the radioactive particles have been removed, a sample transporting pump that is provided at the sample transporting pipe, and a gaseous radioactivity detector that is provided at the sample transporting pipe and detects a radioactivity of the radioactive sample from which the radioactive particles have been removed. The particle collecting filter filters out the radioactive particles from the radioactive sample and the first radioactivity detector detects a radioactivity of the radioactive particles filtered out by the particle collecting filter. | 01-23-2014 |
250382000 | With means to ionize the gas | 11 |
20080251732 | Radiation Detector - The present invention provides a radiation detector in which primary electrons are released into a gas by ionizing radiation from a radiation source ( | 10-16-2008 |
20090159809 | PROPORTIONAL COUNTER TUBE - The gas filled in an envelope contains nitrogen and hydrogen. The nitrogen used as a supplementary gas is not polymerized even when radiation is applied to it, and serves to achieve higher resolution than in the case where carbon dioxide is used as the supplementary gas. The hydrogen can reduce the change of gas gain. | 06-25-2009 |
20100078572 | ANALYSIS OF LOW MOLECULAR WEIGHT MOLECULES BY MALDI-MS - The invention relates to a process for the analysis of molecules having a molecular weight of <1500 Da by matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS), wherein an analyte containing low molecular weight molecules is applied to a matrix material, which is characterized in that the matrix material comprises fullerene-derivatised silica. This process allows clear identification of small molecules through intensive signals without matrix -related background disturbances. | 04-01-2010 |
20100155617 | Neutron detector - A neutron detector comprises a gas-filled dielectric shell, preferably a glass balloon, having opposite electrodes. An electric field is established whereby ionizing particles may be detected via ionization and current flow in the gas, using a pulse height analyzer or other conventional means. The dielectric shell preferably has low gas permeability and a bulk resistivity in the range of 10 | 06-24-2010 |
20110309261 | PLASMA PANEL BASED IONIZING RADIATION DETECTOR - A radiation detector is formed from a plasma panel that includes a front substrate, and a back substrate that forms a generally parallel gap with the front substrate. X (column) and Y (row) electrodes are coupled by gas discharge events to define one or more pixels. Impedances are coupled to the X and Y electrodes, and a power supply is coupled to one or both types of electrodes. Discharge event detectors are coupled to the impedances. | 12-22-2011 |
20120199752 | RADIOGRAPHIC IMAGING DEVICE AND A DETECTOR FOR A RADIOGRAPHIC IMAGING DEVICE - A radiographic imaging device includes a gas avalanche detector detecting and locating X-ray or gamma ray ionizing radiation. The detector has a gas enclosure with an admission window for admitting incident X-ray photons; an intermediate plane electrode in the enclosure between and parallel to two end plane electrodes thereby forming an amplification space constituting a conversion space where the photons are convertible into electrical charges made up of primary electrons and corresponding ions; the intermediate electrode being operable at an electrical potential relative to the electrical potentials of the end electrodes suitable for generating an electric field causing multiplication of the electrons by the avalanche phenomenon in the amplification space near the intermediate electrode; one of the end electrodes being a collector electrode for picking up the electrical signals induced by the ions; and said window being level with the amplification space and between the intermediate plane and collector electrodes. | 08-09-2012 |
20130068956 | PLASMA PANEL BASED IONIZING-PARTICLE RADIATION DETECTOR - A plasma panel based ionizing-particle radiation detector includes a first substrate and a second substrate coupled to the first substrate by a hermetic seal. The second substrate is an ultra-thin substrate. The detector further includes a discharge gas between the first and second substrate and at least one second electrode electrically coupled to a first electrode and defining at least one pixel with the first electrode. The second electrode is coupled to the first substrate and a first impedance is coupled to the first electrode. The detector further includes a power supply coupled to at least the first or second electrode and a first discharge event detector circuitry is coupled to at least one of the first or second electrodes for detecting a gas discharge counting event in the electrode. The detector further includes a plurality of pixels, each pixel capable of outputting a gas discharge pulse upon interaction with ionizing-radiation. Each gas discharge pulse is counted by the detector as having approximately an equal value and circuitry detects if a gas discharge pulse is output from the pixels, and counts each gas discharge pulse as an individual event. | 03-21-2013 |
20130228696 | GAS-FILLED NEUTRON DETECTORS AND IMAGING SYSTEM AND ARRAY OF SUCH DETECTORS - Gas-filled neutron detectors, an imaging system and an array of such detectors are provided. Surfaces or surface portions incorporated into the gas-filled neutron detectors are coated with and/or composed of at least partially, neutron reactive material. The surfaces may be flat or curved, fins or plates, foils, thin sheets, porous or filamentary material, or semi-solid material or aerogel. The incorporation of the extended surfaces coated with or composed of neutron reactive material increases the neutron detection efficiency of the gas-filled detectors. The surfaces can be made of conductive, semiconductive, semi-insulating, or insulative materials. The surfaces are arranged such that they do not detrimentally detract from the main function of a gas-filled detector with particular attention to gas-filled proportional detectors. The surfaces may be arranged in the detectors to allow for modular construction. The surfaces are designed and arranged such that more than a single reaction product may escape the surface. | 09-05-2013 |
20130270446 | IONIZATION WINDOW - An exemplary ionization window assembly includes a support layer having a thickness between a first side and a second side. There is at least one opening in the support layer extending between the first and second sides. The opening has a first width dimension near the first side of the support layer and a second, larger width dimension near the second side of the support layer. A window layer is supported on the second side of the support layer. The window layer extends across the opening to allow ionizing radiation to pass through the opening in a direction from the first side toward the second side. | 10-17-2013 |
20130277567 | IONIZATION DEVICE - An exemplary ionization device includes a pyroelectric electron accelerator that causes electrons to move away from the accelerator. A silicon target is positioned in a path of the electrons. X-ray radiation results from the electrons colliding with the target. | 10-24-2013 |
250384000 | Radioactive | 1 |
20080265171 | HE-3 NEUTRON PROPORTIONAL COUNTER WITH INTERNAL LEAKAGE DETECTION AND RELATED METHOD - A radiation detector includes a pressure-tight housing having a peripheral, cylindrically-shaped wall and opposite end closures. An electrode wire extends through a center of the housing, spaced from the cylindrically-shaped wall. A pressurized detector gas fills the housing, and circuit connections to the electrode wire and the housing permits application of an electric potential thereto. The electrode wire is composed of a material providing a source of alpha particles for ionizing the gas within the housing, generating an alpha peak on the output spectrum distinct from the peak generated by incident neutrons. A related method is also disclosed. | 10-30-2008 |
250385100 | Plural chambers or three or more electrodes | 11 |
20080272306 | PNEUMATIC INFRARED DETECTOR - An infrared (IR) radiation detector adapted to detect IR radiation by measuring pneumatic expansion of a sense chamber that is caused by a temperature increase within that chamber due to the absorbed energy of the IR radiation. A reference chamber mechanically coupled to the sense chamber controls the pneumatic expansion of the sense-chamber. The expansion is detected either electrically or optically. | 11-06-2008 |
20090166548 | DUAL SUBSTRATE PLASMA PANEL BASED IONIZING RADIATION DETECTOR - A plasma panel based ionizing-photon radiation detector includes an input and output substrate with gamma-ray to free-electron conversion occurring primarily on the input plate and a sealed discharge gas between the substrates. X-electrodes and Y-electrodes are formed on the two substrates and configured to form a plurality of pixels. Impedances are coupled to the X and Y electrodes and a power supply is coupled to the X-electrodes. Discharge event detectors coupled to impedances detect discharge events on the Y electrodes and at the pixel locations, which leads to the detection of ionizing-photon radiation. | 07-02-2009 |
20100012851 | Multi-Anode Ionization Chamber - The present invention includes a high-energy detector having a cathode chamber, a support member, and anode segments. The cathode chamber extends along a longitudinal axis. The support member is fixed within the cathode chamber and extends from the first end of the cathode chamber to the second end of the cathode chamber. The anode segments are supported by the support member and are spaced along the longitudinal surface of the support member. The anode segments are configured to generate at least a first electrical signal in response to electrons impinging thereon. | 01-21-2010 |
20110155919 | MICROCHANNEL PLATE, GAS PROPORTIONAL COUNTER AND IMAGING DEVICE - An object of the present invention is to provide a microchannel plate having excellent characteristics which enable to attain both high luminance and high resolution at the same time, a gas proportional counter using such a microchannel plate and an imaging device. The microchannel plate according to the present invention comprises a base body provided with a plurality of through holes ( | 06-30-2011 |
20110215251 | IONIZING RADIATION DETECTOR - An ionizing radiation detector has conductive tubes arranged in parallel and containing a pressurized gas mixture, a conductive wire being pulled tight at the center of each tube and capable of being biased with respect thereto. Each tube is divided into isolated longitudinal sections. All the tube sections of a same transverse slice are electrically connected. Each group of sections of a same slice includes means for being connected to an elementary detector, wherein each slice is formed of a grid of blades. | 09-08-2011 |
20110272591 | Protected readout electrode assembly - The readout electrode assembly of an avalanche particle detector can be effectively protected against sparks and discharges by means of a plurality of resistor pads formed in a dielectric cover layer above the readout pads. The resistor pads may either be connected directly to the readout pads, or may be coupled capacitively by means of a charge spreading pad embedded into the dielectric cover layer and spatially separated from the readout pads. The charge spreading pad allows the distribution of charges to neighboring readout pads, and may hence increase the spatial resolution of the detector device. | 11-10-2011 |
20130068957 | Neutron detector and method of making - A neutron detector comprises at least two conductive cathode sheets lying parallel to one another and coated with neutron reactive material on at least one side thereof; dielectric material separating the cathode sheets and covering less than about 80% of their surface area; and a plurality of anode wires lying generally parallel to the cathode sheets and separated from them by the dielectric, with the distance between adjacent anode wires being no more than twenty times the distance between said cathode sheets. The cathode sheets may be flat or curved; they may be separate plates or they may be successive folds or windings of a single folded or spiral-shaped metal sheet. Related methods for building the detector are disclosed. | 03-21-2013 |
20150008328 | RADIATION MEASUREMENT APPARATUS - A radiation measurement apparatus for measuring radiation includes a first and second Geiger-Muller counter tubes and a radiation-direction calculating unit. The first Geiger-Muller counter tube seals an electrode within a circular pipe-shaped enclosing tube that extends in a straight line. The first Geiger-Muller counter tube is arranged along a first direction. The second Geiger-Muller counter tube seals an electrode within a circular pipe-shaped enclosing tube that extends in a straight line. The second Geiger-Muller counter tube is arranged in a second direction intersecting with the first direction. The radiation-direction calculating unit is configured to compare a first detection signal and a second detection signal with one another to calculate a direction of radiation to be emitted from the sample. The first detection signal is output from the electrode of the first Geiger-Muller counter tube. The second detection signal is output from the electrode of the second Geiger-Muller counter tube. | 01-08-2015 |
20150060685 | CONVERTER UNIT - A converter unit configured to convert incident photons into electrons comprises multiple blind holes forming respective ionization chambers. In additional embodiments, the converter unit is arranged in a detector, such as an X-ray detector or absolute radiation dose measurement detector, additionally comprising an electron amplification device and/or a readout device. | 03-05-2015 |
20150301203 | NEUTRON DETECTOR UNIT AND NEUTRON DETECTOR ARRANGEMENT - The invention relates to a neutron detector unit for neutrons, in particular thermal and cold neutrons, comprising a detector housing ( | 10-22-2015 |
250385200 | Spark chambers | 1 |
20150355345 | NEUTRON DETECTOR USING PROPORTIONAL COUNTERS - A neutron detector module comprising a distribution of proportional counters positioned in in a defined array. Each of the proportional counters includes a supply of a neutron sensitive gas for reacting with neutrons, and this reaction generates ionizing reaction products. The proportional counters include a multitude of tubes, and each of the tubes has a diameter between 0.50 inch and 1.00 inch. The neutron detector module comprises further a multitude of electrical conductors; and each of the conductors is positioned in one of the proportional counters, and the ionizing reaction products generate electric current pulses in the electrical conductors. | 12-10-2015 |
250387000 | With periodic electrode bias supply | 1 |
20140291538 | STEP UP CIRCUIT AND RADIATION METER - A step-up circuit includes a transistor configured to perform switching operation in response to a pulse signal input into a base of the transistor, an inductor disposed between a collector of the transistor and a power source, and a basic step-up circuit connected to a connecting point of the collector of the transistor and the inductor. The basic step-up circuit includes: a first diode, a second diode whose anode is connected to a cathode of the first diode, a third diode whose anode is connected to a cathode of the second diode, a first capacitor disposed between the cathode of the first diode and ground, a second capacitor disposed between an anode of the first diode and the cathode of the second diode, and a third capacitor disposed between a cathode of the third diode and the ground. | 10-02-2014 |
250388000 | With indicator | 1 |
20090114833 | RADIATION MONITOR - The invention comprises a radiation and contamination monitor for the monitoring of radiation and contamination. The instrument is intrinsically safe and comprises a radiation detector, a power source, a signal processor and a display, said power source, signal processor and display being housed within a sealed instrument housing formed from a non-metallic material which is resistant to static discharge. The detector may be housed in a detachable housing for contamination monitoring. | 05-07-2009 |