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JP55082976 |
PURPOSE: To improve the stability of signal detection with a higher density of the detecting element by means of a plurality of electrode fixing strips made of a metal plate coated on both the sides with an insulator to support the anode...
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JP55080073 |
PURPOSE: To measure extremely strong radioactive rays by arranging a plurality of anode wires in the radiation incident direction and connecting the wires to respective pulse number measuring circuits. CONSTITUTION: A radiation incident ...
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JP55078269 |
PURPOSE: To count the radiant rays incident in the vessel via the incident window regardless of external moisture, by giving a plurality of anode lines between the supports in the sealed vessel and flowing count gas in the vessel togethe...
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JP55065175 |
PURPOSE: To enable to measure radiant rays accurately in case of count gas high in humidity, by applying DC current to the anode of the gas counter tube. CONSTITUTION: The gas counter tube 1 of cylinder type has the anode 3 connected to ...
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JP55016310 |
PURPOSE: To decrease the change of the compensation characteristic due to external temperature change and γ-ray energy change, by dividing the cylindrical multi- electrode assembly into two or more sections in the axial direction and re...
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JP55013817 |
PURPOSE: To make it possible to detect a signal current accurately and stably by grounding a dark current via an electrode holding plate. CONSTITUTION: The electrode holding plate consists of insulator 2 and metal plate 3 adhered 4 by st...
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JP55013816 |
PURPOSE: To keep dark currents below a fixed value over all electrodes by elongating each parallel-surface distance between electrodes by providing grooves between respective anode electrodes and cathode electrodes. CONSTITUTION: Between...
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JP55013815 |
PURPOSE: To improve the reliability of signal detection with electric characteristics stabilized by definitely holding each electrode by incurvating several parallel electrodes. CONSTITUTION: On groove 4 of a fixed gap of insulator 1, an...
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JP55009113 |
PURPOSE: To enhance the accuracy of detection, by connecting each cathode opposing to anode being fabricated by piano wire or tungsten wire, with the resistors of the lst and the 2nd groups, each of whose output ratio corresponds to the ...
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JP54153686 |
PURPOSE: To make the manufacture of the detector easy by making electrode supports by metal material and supporting signal electrodes to the electrode supports by way of insulators. CONSTITUTION: Electrode supports 9a are made of metal m...
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JP54153687 |
PURPOSE: To make the fabrication of the detector easy and improve its accuracy by forming unit electrodes consisting of bias electrode plates, signal electrodes and insulators and assembling a plurality thereof to electrode supports made...
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JP54145586 |
PURPOSE: To prevent occurrence of gap between constituent parts and stabilize the characteristics of an ionization chamber, by allowing displacement of tube end part of electrodes in the axial direction, defining the movement of the elec...
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JP54143688 |
PURPOSE: To reduce leakage current while reducing interelectrode spacings by supporting bias applying electrode plates and signal plates separately by mutually separate insulators. CONSTITUTION: Insulators are divided to insulating mater...
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JP54143689 |
PURPOSE: To achieve the improvement in response characteristics and sensitivity by supporting electrode plates with a pair of grooved insulators opposedly disposed in an enclosure. CONSTITUTION: A pair of insulators 13A, 13B which are en...
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JP54139781 |
PURPOSE: To make the adhesiveness of the metal-ceramic sealed terminals led out from the first detector case sealing therein high pressure-ionization gas by covering sad terminals with the second detector case filling therein the gas of ...
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JP54092295 |
PURPOSE: To enable good plateau characteristics to be obtained even when Q gas is used for counting gas by applying a Ni film to the inside wall surface of a cathode case. CONSTITUTION: A Ni film 10 is formed by vapor deposition or plain...
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JP54091289 |
PURPOSE: To enable the thickness of insulator to be reduced and facilitate wiring formation by forming the insulator opposedly disposed with a linear electrode and a plate form electrode with ceramics. CONSTITUTION: Metallized surfaces 4...
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JP54089790 |
PURPOSE: To enable good plateau characteristics to be obtained even when Q gas is used as a counting gas by applying a Cr film on the inside wall surface of a cathode case. CONSTITUTION: A Cr film 10 is provided by vapor deposition or pl...
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JP54088178 |
PURPOSE: To obtain good platean characteristics by applying a gold film on the inside wall surface of a metal made case having a radiation incident window. CONSTITUTION: An anode wire 1 is composed of a tungsten wire applied with gold pl...
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JP54070880 |
PURPOSE: To reduce the noises coming from the gamma ray by extending a thin silver plate on a portion of a cathode, which is positioned in the vicinity of a neutron source of an 3He proportion counter, so as to absorb the gamma ray which...
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JP54059021 |
PURPOSE: To obtain an X-ray pickup device which features a higher sensitivity than the electro-raiography as well as an easy conversion into visible picture images, by forming the X-ray image of the subject onto the photoconductive film ...
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JP54034883 |
PURPOSE: To prevent breakage of stretched core wire by affixing heat-resistant insulating material to one side or both sides of insulation substrate of detector placed in Xe gas in a specified fashion, in a computerized X-ray tomograph.
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JP54014291 |
PURPOSE: To achieve the improvement in detecting sensitivity by changing the thickness of a moderator for neutral detector with the incident side and opposite side.
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JP54007390 |
PURPOSE: To eliminate the unevenness in capturing and releasing of electrons and make possible the provision of stable characteristics by mutually insulating the collector electrode disposed on the outside of an emitter electrode with an...
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JP54005483 |
PURPOSE: To make possible highly accurate measurement even when the ambient temperature of the detector is high or the level of neutron flux is low by applying pulsating current across the anode and cathode of the neutron detector and st...
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JP54003586 |
PURPOSE: To make possible effective utilization of X-rays as much as 40% of the incident X-rays having passed through sensitive regions without stopping and prevent the decrease in space resolution by providing a radiation blocking plate...
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JP54003585 |
PURPOSE: To provide a wide dynamic range and improves S/N by having signal electrodes of different signal wire diameters within the same detector and leading out these with separate signal wires.
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JP53144390 |
PURPOSE: To facilitate sensitivity calibration and sensitivity deviation calibration by sealing gaseous radioactive isotope krypton 85 for calibrating in an ionization chamber.
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JP53135688 |
PURPOSE: To thin tube wall, enhance counting efficiency and increase corrosion resistance, and high-temperature-, high-moisture resistances by using a metal having rigidity for the tube body of a GM counter tube for measurement of β and...
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JP53123987 |
PURPOSE: To provide the function of high tension guard electrodes to frames and reduce leakage and noise by making firm the fixing of a detection cell by a pair of electrode holding plates having opposing grooves and insulator frames whi...
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JP53119089 |
PURPOSE: To perform the compensation of disturbing current effect by gamma rays as well as to improve the collection efficiency of induced radiations and enhance neutron detection sensitivity by disposing collector electrodes on the insi...
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JP53114476 |
PURPOSE: To produce a detector which has not crosstalk among the respective channels for a fan beam radiation but has high positional resolution by arranging a semiconductor radiation detecting element such that an X ray incident surface...
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JP53105280 |
PURPOSE: To achieve the improvement in sensitivity and responsiveness and the reduction in weight by using an Al member for the incident window of radiations, disposing electrodes for signal lead-out and voltage application alternately i...
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JP53092182 |
PURPOSE: To reduce the crosstalk between the detectign elements by forming the material of high voltage electrode plate of the detecting element composed of high voltage electrodes at the signal electrode therebetween with heavy metal.
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JP53078878 |
PURPOSE: To produce a high output with a high gas amplification by filling signal electrodes, which are composed of a plurality of metal wires in a manner to receive one another, and a plate-shaped high voltage electrode in gases in mann...
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JP53071884 |
PURPOSE: To provide least sensitivity to unnecessary scatter rays, provide sufficiently high sensitivity to necessary transmitted X-rays only and eliminate the need for accurate collimator by forming a detector in flat plate form gas det...
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JP53065774 |
PURPOSE: To enable to detect with a high accuracy without affected by the earth magnetism and also , to make small size, by enclosing the electrode, made of metallic fine wire, and high voltage electrode, opposing to the above signal ele...
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JP53040575 |
PURPOSE: The quantity of the thermal neutrons being counted is positively increased and are effectively directed to a neutron detector by providing a fast neutron decelerating member and a thermal neutron inducer and disposing the neutro...
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JP53014576 |
PURPOSE: To improve the flow of ion beams and make possible the accurate measurement of the charge quantity to be implanted to semiconductor wafers by providing a window spanned with multilayered metal screens on one side face of a hollo...
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JP52107789 |
PURPOSE: To obtain X-ray shift image in high speed of few-hundredths or fewtenths second by rotating X-ray detector together with beam guide.
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JP52074380 |
PURPOSE: To provide gas amplification effect and achieve the improve the improvement in reliability by so composing the ionization box as to be made usable in proportional regions through enhancement of ionization current sensitivity, an...
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JP52067686 |
PURPOSE: To provide a device for measurement of distribution of neutrons by detecting neutrons inducing nuclear fission in a nuclear reactor, which makes it possible to measure the distribution of neutrons without moving the detector.
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JP52064593 |
PURPOSE: To improve earthquake resistance by means of nutually holding a neutron detector, blocks of slowing-down materials, a container and its disk by the presence of elastic materials inserted into mutrual spaces.
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JP52026275 |
PURPOSE: To change the temperature of a proportional counter tube against variations in gas density to keep the density always constant thereby facilitating control and allowing reduction in apparatus size.
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JP52020077 |
PURPOSE: To improve energy-level characteristics by pressurizing and sealing in two or more different kinds of gas at a selected ratio.
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JP52017877 |
PURPOSE: The thickness of effective sensitivity section is made to be below 1/3 effective diameter of radiation ray incident window, and a shielding material equivalent to over 3 cm in terms of lead is formed to make a simple and easy to...
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JP52016283 |
PURPOSE: Not to adsorp active gases which is sealed in a shell of a detective element by an adsorption treatment of the metal material which composes a part of the shell, by active gases.
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JP52007785 |
PURPOSE: To make it possible to measure low-speed electrons precisely by setting the pulse-generating circuit at the place between the positive electrode of gas amplification counter and the grid electrode.
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JP51146883 |
PURPOSE: To reduce production time and cost of a neutron detector equipped with an electrode having parts with larger diameter and parts with smaller diameter alternately by forming the electrode into alternate piles of metal disc having...
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JP51135359 |
PURPOSE: To obtain a charged particle collector which is easy to manufacture and which is capable of obtaining signals of large S/N.
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