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JP3051734B2 |
To provide a long-life X-ray detector which is compact in the cross direction of a slit X-ray when used in the detection of the X-ray. This X-ray detector is a proportional counter tube adapted to detect X-rays and including a slender wi...
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JP2000149864A |
To provide a neutron detector equipped with a boron trifluoride gas proportional counter, capable of obtaining a neutron detection sensitivity determined beforehand, while generation of fluorine gas is suppressed. Gas pressure for enclos...
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JP3037834B2 |
PURPOSE: To obtain an outer-fitting type ionization chamber, of which detection accuracy can be improved, by improving a mechanism, which can change a facing distance between a collector electrode and an incident electrode. CONSTITUTION:...
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JP2000504832A |
The application of gas-detection principles on both dual-energy detection, such as for chest radiography and mammorgraphy, and quantitative autoradiography enhances dramatically the image quality of the digital dual-energy detector with ...
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JP2000075037A |
To accurately and stably measure a dynamic range that is wide from a low radiation level to a high radiation level. An ionization-box-type radiation detector for detecting radiation by measuring an ionization current due to the incidence...
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JPH11352234A |
To provide an ionization chamber detector having extremely satisfactory energy characteristic. An outside electrode and a cover of this ionization chamber detector are formed of aluminum, and nitrogen gas mixed with a small amount of arg...
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JP2983340B2 |
PURPOSE: To monitor the calibration variation of a scintillation tube so that the voltage of the tube can be adjusted in accordance with the variation of a load by providing a three-terminal floating voltage adjuster which gives an adjus...
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JPH11513530A |
PCT No. PCT/FR96/01576 Sec. 371 Date Jul. 16, 1998 Sec. 102(e) Date Jul. 16, 1998 PCT Filed Oct. 10, 1996 PCT Pub. No. WO97/14173 PCT Pub. Date Apr. 17, 1997This detector comprises a gas chamber (2) containing plane electrodes (4, 6, 8) ...
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JP2962327B1 |
To carry out a continuous humidity measurement by a simple constitution without permitting a leakage current to flow between electrodes even if the humidity is high. In this hygrometer, a left side flat plate 1 of right and left conducti...
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JP2960514B2 |
PURPOSE:To measure the tritium concentration without being affected by the pollution on the inner face of a detector by providing a hydrogen adsorbing metal plate adsorbing the sample gas and a device radiating the pulse light to the sur...
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JP2953010B2 |
PURPOSE:To improve the ion transmissivity and the analysis sensitivity by applying a specific voltage to a gate valve to give the function as an ion lens to the gate valve, as well as insulating electrically the gate valve from a center ...
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JP2938134B2 |
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JP2936098B1 |
[wrap up] [Task] It is possible to form a thin type, and realize an ultraviolet sensor that does not generate extra gas during manufacturing. From the anode-side substrate 12 made of ultraviolet-transmissive glass on which the silicon la...
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JP2935362B1 |
[wrap up] [Task] High-sensitivity measurement can be performed with a simple configuration without leakage current flowing between the electrodes even when the humidity is high. The left flat plate of the left and right conductive flat p...
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JPH11218418A |
To reduce size and improve detection efficiency and angle characteristics by arranging a detector having annular detection surface coaxial with X-ray irradiation beam from an end widow type X-ray tube. The distance to a hard disk (sample...
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JP2930513B2 |
PURPOSE: To discriminate the nuclear species of different energies including a β-ray nuclear species by applying a voltage to a collecting electrode disposed at the center, an inside ion chamber and an outside ion chamber, and measuring...
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JPH11204076A |
To provide a gas electron amplifying element and a gas electron amplification detector having high reliability and safety and capable of detecting emitted light at high precision. This gas electron amplifying element comprises an insulat...
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JPH11183627A |
To substantially eliminate deterioration of a saturation characteristic of gamma rays. A limitation is provided whereby the sum of areas of a plurality of holes 9 formed at a signal electrode 2 is set to be not more than 5% of the surfac...
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JP2907469B2 |
PURPOSE:To prevent the occurrence of noise induced from the outside and simplify insulating composition by connecting a bias power supply, which is connected in series to a small battery, between a collector electrode and an electrometer...
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JPH11160280A |
To provide an ionization detector having a good S/N ratio by performing a trace detection. The ionization detector comprises upper and lower ionization chambers 114, 116, and a radioactive particle source 140. In this case, a gas to be d...
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JPH11160438A |
To provide a particle detector for an electron microscope and a mass analyzer, etc. A single plate electron multiplier 2 like a microchannel plate or microspherical plate behind which a scintillator 4 is positioned is included. The elect...
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JPH11505602A |
(57) [Summary] The present invention provides a method for manufacturing a radiation permeable window. In the case of radiation, especially long-wave X-rays, to achieve proper radiation transmission, windows are made from materials conta...
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JPH11118931A |
To provide a spheric ionization chamber detector having an excellent energy characteristic. A high-voltage electrode 11 is made of a stainless steel sheet having a thickness of 2 mm and a cover 14 is made of another stainless steel havin...
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JPH11503865A |
PCT No. PCT/NL96/00081 Sec. 371 Date Oct. 20, 1997 Sec. 102(e) Date Oct. 20, 1997 PCT Filed Apr. 21, 1996 PCT Pub. No. WO96/33508 PCT Pub. Date Oct. 24, 1996Streak camera whereof the pulse converter for converting a photon pulse for dete...
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JP2863587B2 |
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JP2859747B2 |
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JPH1145680A |
To provide a gas electron amplifying element and a gas electron amplification detector capable of detecting emitted light with high reliability. A gas electron amplifying element 8 has an insulating support 4, anode electrodes 5 and cath...
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JPH1138143A |
To provide a detector which can simplify its attaching mechanism, can reduce the time required by attaching work and characteristic tests, and can work as a monitor of a centralized environment monitoring system. The main body section of...
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JP2843319B1 |
An imaging microstrip gas chamber (MSGC) high-speed data acquisition system capable of processing at high speed a large number of output signals of an imaging microstrip gas chamber. The system includes discrimination circuits (103, 104)...
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JPH10332640A |
To obtain a reliable operating current by means of small radioactivity by a method wherein an ion source is installed inside a thin chamber whose internal particle travel distance is shorter than a specific value and the ion source is se...
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JPH10332835A |
To provide an ionization chamber type X-ray detector enabling elimination of a dead space. In this detector, Xe gas is sealed in a shield vessel having an X-ray incidence window 2 formed in a part, while a signal electrode 3 and a bias e...
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JP2831316B2 |
A dual entrance window ion chamber (10) is surrounded by a housing (50) with 1st and 2nd openings (54,56) covered by 1st and 2nd X-ray windows (120,122) on opposite sides of the chamber (10). A collector (100) in the chamber between the ...
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JPH10263811A |
To provide a manufacturing method and a manufacturing device for a cylindrical metal container without dispersion in the welded state. The manufacturing device of the cylindrical container is provided with the lathe 35 supporting two cyl...
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JP2798270B2 |
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JPH10186043A |
To miniaturize an X-ray detector without requiring a capacitor module by accumulating the current flowing on a signal electrode in a parallel flat capacitor formed with the signal electrode as charges. Insulating layers 2 made of an insu...
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JP2769558B2 |
There is disclosed an assembly for slit radiography with image equalization, comprising a two-dimensional dosimeter for detecting the amount of X-rays transmitted through a body. During a scan different parts of the dosimeter detect the ...
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JPH10132945A |
To monitor radiation beam characteristic and position with high reliability at low cost by arranging a second beam measuring electrode within a secondary beam cell, and producing an output corresponding to the energy of the second part o...
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JP2738761B2 |
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JPH1082863A |
To provide a high resolution radiation imaging device for medical or industrial use. This device has at least one ionized particle detecting device 1, and the ionized particle detecting device 1 has at least one gas chamber 10 with an ap...
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JP2728986B2 |
A radiation monitor has an ionization space formed with a frame made of insulating material, a high-voltage electrode, and a collecting electrode opposing the high-voltage electrode. The ionization space has an equal dimension throughout...
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JP2723391B2 |
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JPH1054877A |
To improve the ion collecting efficiency of a liquid ion chamber by arranging insulating solid layers forming spacers between two electrode assemblies so as to prevent the movement of ions among picture elements. For example, high-voltag...
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JPH10501622A |
(57) [Summary] A detector provided for a device used to measure the radioactivity region, which has two electrodes to which a voltage is applied between the electrodes and a counter gas between the electrodes. doing. In such a device, th...
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JP2686836B2 |
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JP2676974B2 |
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JPH09292468A |
To provide the ionization chamber, which efficiently and stably detects only the amount of attenuation caused by the transmission through a material to be measured at a high speed, even when the beam alignment of X rays deviates by elimi...
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JPH09281246A |
To improve the positional resolution in the Y direction and to obtain the neutron detector of simple structure capable of being esily fabricated. A high-voltage electrode 1 and an internal partition plate 3 as a cathode are alternately a...
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JPH09281247A |
To eliminate inappropriate sampling and to evaluate the radioactive gas concn. as planned. This vessel is provided with plural stop valves 14 and 16 and sealed by closing the vessel, and a pressure gage 22 indicating the pressure in the ...
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JPH09510776A |
PCT No. PCT/FI93/00577 Sec. 371 Date Nov. 19, 1996 Sec. 102(e) Date Nov. 19, 1996 PCT Filed Dec. 31, 1993 PCT Pub. No. WO95/18391 PCT Pub. Date Jul. 6, 1995The object of the invention is a method for determining the size and shape of the...
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JP2661769B2 |
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