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JP2005031017A |
To provide a compact radiation absolute hygrometer that has a simple structure and can perform accurate measurement.In the radiation absolute hygrometer having an ion chamber 10 equipped with a high-potential electrode 11 and a collector...
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JP2004354216A |
To provide an inexpensive radiation measuring device for automatically measuring a dose rate of radioactive gas from a high level to a low level at high sensitivity and no-contact by eliminating influence of background radiation.The radi...
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JP3589766B2 |
To prevent generation of the dispersion of filament diameter in a filament electrode even if exhausted at high temperature, and enhance resolution characteristics by using a Pt alloy containing Rh as the material of the filament electrod...
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JP3580879B2 |
PURPOSE: To enhance the bonding strength of an amorphous carbon material to a metallic or ceramic material by previously roughening the surface of the carbon material to be joined, interposing a brazing filler metal and carrying out heat...
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JP3564524B2 |
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JP2004226389A |
To provide a method with which variations in hydrogen ions or a deuterium ions and a secondary generated particles are observed through making nuclear reactor neutrinos pass along the hydrogen ion beam or the deuterium ion beam.Anti-elec...
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JP3549931B2 |
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JP2004212318A |
To provide a single layer X-ray exposure dosemeter of a simple structure having high X-ray transmittance in irradiation filed, having a low aluminum equivalent, having reduced exposure to subjects, and capable of measuring integrated sur...
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JP2004212289A |
To provide a radiation detector that can enhance the reliability of an output even when a vibration or impact is generated.A positive electrode 15 and a positive electrode terminal 16 are integrally formed by a positive electrode body 14...
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JP3534456B2 |
PURPOSE: To measure radon daughter nuclide and thoron daughter nuclide by separately measuring radon and thoron when measuring them. CONSTITUTION: In a measurement container 28, radon daughter nuclide and thoron daughter nuclide are capt...
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JP2004515791A |
A radiation detector including a chamber capable of being filled with an ionizable and scintillating substance, and a radiation entrance arranged such that radiation can enter said chamber partly for ionizing said ionizable and scintilla...
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JP2004510963A |
An apparatus for planar beam radiography comprises an ionizing radiation source and an ionizing radiation detector; the ionizing radiation source being line-like and extending substantially in a first direction; and the ionizing radiatio...
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JP2004510141A |
A detector for detection of ionizing radiation comprises a first cathode and a first anode between which a first voltage is applicable; an ionizable gas arranged at least partly between the first cathode and the first anode; a radiation ...
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JP2004508544A |
A multi-detector system receives incident radiation through a subject includes a gaseous microstrip detector, which has alternating anodes and cathodes on a substrate opposite a voltage source, is positioned adjacent a semiconductor dete...
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JP2004037093A |
To provide an optical sensor device having the simple constitution for detecting the light from a light source with constant detecting sensitivity regardless of axial dislocation of the light source.This optical sensor device has an opti...
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JP3481643B2 |
PURPOSE: To provide a vacuum container which uses a beryllium foil for the window and whose window is prevented from being cracked or damaged beforehand to improve air-tightness of the window and provide manufacturing method of the conta...
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JP3481031B2 |
To obtain a high reliable portable open counter by providing a double cylindrical lattice electrode as an anode is centered, and logically and exactly grasping an electrical field between the anode and a cylinder and between an inner cyl...
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JP2003344544A |
To detect low energy X-rays of very light elements with sufficient sensitivity, and enable detection for a wide measurement range from a very light element region to an intermediate element region, with sufficient sensitivity. This detec...
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JP2003536080A |
The present invention relates to an apparatus for detection of radiation comprising a photocathode layer adapted to release photoelectrons in dependence on incident radiation; a radiation entrance arranged such that a beam of radiation c...
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JP2003536078A |
A method of identifying radiation detected in a wall-less proportional gas counter providing a stable pulse height spectrum. The method comprises i) transforming the detected pulse height spectrum (dn/dx) in accordance with the transform...
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JP2003322680A |
To provide a radiation detector for high precision measurement with no degradation factor such as decombination of electric charges.A radiation 10 which is to be measured and radiated from a radiation source (omitted in figure) is made i...
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JP2003522955A |
A detector for detection of ionizing radiation comprises a chamber (13) filled with an ionizable gas, and including a first (17, 19) and a second (21) electrode arrangement between which a first voltage (U1, U2) is applicable, a radiatio...
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JP2003519388A |
A method and apparatus for radiography and also a detector for detecting incident radiation. In the method and the apparatus X-rays (9) are emitted from an X-ray source (60). The X-rays which have interfered with an object to be imaged a...
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JP2003167062A |
To detect the neutron position with high resolving power in simple constitution using 3He gas sealed in a container.This neutron position detector includes a sealed space container 42 where mixed gas containing 3He gas and additive gas i...
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JP3408543B2 |
An alpha detector for application in areas of high velocity gas flows, such as smokestacks and air vents. A plurality of spaced apart signal collectors are placed inside an enclosure, which would include smokestacks and air vents, in suf...
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JP2003130958A |
To provide an ionization chamber detector of which the self-staining dose rate due to an outside electrode made of aluminum and a cover made of aluminum does not exceed a predetermined value of 10 nGy/h or less without forming a shieldin...
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JP3396460B2 |
To provide an X-ray fluorescence analyzer and an X-ray detector used therefor with simple structure and handling which permit detection of fluorescence X rays in a soft X-ray region as well not limited to the hard X-ray region by modifyi...
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JP3380815B2 |
A simplified ion chamber for determining radiation from an X-ray source with the chamber having a single emitter electrode (18) and a collector electrode (24) of substantially the same size. A spacer element for positioning between the e...
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JP3375361B2 |
An inner side of a radiation entrance window in an X-ray detector is provided with an electrically conductive layer of gold, platinum, irridium or a mixture of these elements. Using such a layer, suitable electrical conductivity, a low r...
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JP2003502627A |
An X-ray beam position monitor has a first plate assembly (1, 3) for detecting the position of the X-ray beam in a horizontal plane and a second plate assembly (6, 8) for detecting the position of the X-ray beam in a vertical plane. The ...
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JP2002543573A |
A detector unit for two-dimensional detection of incoming radiation from an X-ray source, primarily for use in X-ray radiography. The unit includes a solid material structure (2) having a plurality of passages (6) extending therein and c...
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JP3354551B2 |
A particle beam image detector employing gas amplification attained by pixel-type electrodes has high sensitivity and improved reliability of electrodes. Electrons e<-> produced through ionization of the gas by the incident particle beam...
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JP2002541487A |
A method for detecting ionizing radiation, a detector (64) for detection of ionizing radiation, and an apparatus for use in planar beam radiography, including the detector. The detector includes: a chamber filled with an ionizable gas; f...
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JP2002541488A |
A detector for detection of ionizing radiation, and an apparatus for use in planar beam radiography, including such a detector. The detector includes a chamber filled with an ionizable gas. First and second electrode arrangements are pro...
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JP2002541489A |
A detector (64) for detection of ionizing radiation, and an apparatus for use in planar beam radiography, including the detector (64). The detector (64) includes a chamber filled with an ionizable gas; first and second electrode arrangem...
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JP2002541490A |
A detector (64) for detection of ionizing radiation, an apparatus for use in planar beam radiography, comprising such a detector, and a method for detecting ionizing radiation. The detector comprises: a chamber filled with an ionizable g...
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JP3346792B2 |
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JP2002507311A |
The invention relates to an ionization chamber for radiometric measuring instruments, specially for transversal surface measurement systems, comprising a housing with filling gas therein, having at least one radiation input window and a ...
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JP3241724B2 |
PCT No. PCT/GB92/01941 Sec. 371 Date Apr. 12, 1994 Sec. 102(e) Date Apr. 12, 1994 PCT Filed Oct. 22, 1992 PCT Pub. No. WO93/08484 PCT Pub. Date Apr. 29, 1993.A PET radiation detector includes a pair of amplifying gaps 3,21 to enhance the...
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JP2001281342A |
To provide an X-ray detector capable of detecting high-energy X rays with sufficient resolution. In a sealed proportional counter tube, a case 3 in which a window 2 to make X rays 1 incident is formed and which forms a negative electrode...
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JP2001272470A |
To provide an energy spectrum measuring apparatus suitable for measurement of energy spectrum of burst type radiation. A plurality of anode rays are arranged along a virtual plane in a chamber. Each of the anode rays is arranged parallel...
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JP2001509301A |
(57) [Summary] An infrared camera according to the present invention for depicting an object is a conversion means for converting photons in the infrared region emitted or reflected by the object into charged particles as a function of t...
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JP2001135268A |
To provide a gas chamber detector that has a gas electron multiplier, detects X-rays and forms X-ray image with CT scanner. This detector is formed substantially with two-dimensional alley of a plurality of anode pads, and its output sig...
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JP3157825B2 |
PURPOSE:To charge a battery only by hanging a loop on a charge hook by equipping a main body with a primary coil wound round the base end of the charge hook and equipping a probe with the loop including a secondary coil and hung on the c...
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JP2001083253A |
To obtain an apparatus and a board whose reliability and productivity are enhanced by a method wherein a second substrate is fixed to the rear surface of a first substrate so as to be detachable and the second substrate can be replaced s...
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JP2001084952A |
To provide impulse of high current velocity without lowering counting velocity of a radiation detector by providing a counting wire and a grid under gas atmosphere so as to be parallel with each other to multiple-avalanche chambers provi...
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JP3136179B2 |
PURPOSE: To transmit radiations whose wavelength is 20 microns or more by providing a supported layer provided with first and second main surfaces with the adhesive material of polymer resin capable of transmitting the radiations and man...
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JP2001033557A |
To miniaturize and stabilize an ionization space capacity, improve the position measurement of radiation beams, and perform accurate measurement by providing a step or a groove on a mounting surface for mounting an electrode film. A step...
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JP2000321358A |
To set a detecting face into an optional shape so as to improve positional accuracy for detecting radiation by forming two electrode wires in parallel with each other and adjoingly on a dielectric flexible film. For example, copper foil ...
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JP2000304888A |
To inspect and confirm fuel defect, defect position specifying or the like of an inspected MOX fuel assembly in a short time within a fuel rack on the basis of a neutron measurement value of a neutron detector to improve specifying perfo...
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