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JP3685212B2 |
PURPOSE: To provide a high-voltage power source which can prevent the output of a high voltage when a high-voltage outputting connector is not connected to such equipment as the secondary electron multiplier, etc., by surely detecting di...
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JP2005207955A |
To provide a circuit for photodetection, and a photodetector capable of measuring a quantity of light in a wide dynamic range by using a photomultiplier.The circuit 5 for photodetection is provided with a negative voltage generating part...
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JP3675326B2 |
To provide a multi-channel plate having a high precision and a large area. This has a substrate 1 to contain aluminum having the first principal face and the second principal face opposing to the first principal face, multiple micropores...
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JP3664559B2 |
To provide a driving circuit for a photomultiplier capable of reducing power consumption. A step-up circuit 18 consisting of diodes D1-D13 and capacitors C1-C13 generates a high voltage Vk based on the AC voltage Vac of a DC/AC convertin...
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JP2005134374A |
To provide a method for determining an arrival time of at least one ion by an ion detector.In the ion detector for this mass spectrometer, the arriving ion generates a signal, and a time when the signal crosses an intensity threshold val...
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JP2005116251A |
To provide a light receiver and a fluorescence confocal microscope which have high sensitivities.A light receiver 20 comprises a photoelectric surface 20b generating electrons in response to incident light, a window member 20a' placed on...
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JP3640464B2 |
To provide an electron multiplier and a photomultiplier tube capable of suppressing generation of a crosstalk. An electron multiplier and a photomultiplier tube are provided with an electron multiplying part 10 laminating a dynode 11 for...
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JP3630456B2 |
PURPOSE: To provide a resistor capable of reducing an installation space, and easy to handle. CONSTITUTION: For obtaining a resistor 10, a number of metal conductors U are formed on a ceramic substrate 11, and resistance film substances ...
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JP3626313B2 |
An electron tube (1) in which a side tube (10) and a faceplate (21) are sealed together using a malleable metal (23) with a low melting point. The metal (23) is made to spread out along the outer surface of the faceplate (21) due to pres...
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JP3626312B2 |
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JP3620924B2 |
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JP3620920B2 |
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JP3620925B2 |
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JP3618013B2 |
Photomultiplier tube (1) having a photocathode (5) for emitting photoelectrons to an electron multiplication portion (6). The electron multiplication portion (6) includes a first dynode (Dy1) and a second dynode (Dy2) in confrontation wi...
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JP2005030972A |
To provide a photomultiplier module with a shutter, to achieve size reduction.In the photomultiplier module 1 with the shutter, a head-on type photomultiplier 3 is housed in a dark box 2, in which the front surface of the dark box 2 is c...
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JP3615857B2 |
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JP3615856B2 |
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JP3614255B2 |
To provide a photomultiplier tube capable of preventing the deformation of a photomultiplier part and maintaining high uniformity in an anode. This photomultiplier tube is structured so that electrons multiplied with the dynodes 8 of a p...
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JP2005011592A |
To provide an electron multiplier equipped with a dynode part excellent in vibration resisting performance.This electron multiplier is characterized by that a Venetian blind dynode 5A and respective metal channel dynodes 5B of the dynode...
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JP3608896B2 |
To provide a practicable electron tube which can make a field emission type electron-emitting source emit electrons stably and efficiently. This electron tube is provided with a field emitter 20 which emits electrons by applying voltage,...
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JP2005003444A |
To provide a compact, large-area, and high-sensitivity radiation detector capable of fluoroscopy by stacking a planar photomultiplier and a photosensor array.X rays impinge from an Al substrate 1 of an incident window and are converted t...
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JP2004361302A |
To provide a radiation detector for maintaining high image quality at high resolution by accurately discriminating a position without lowering output even when a gamma ray is incident on any place.A radiation detector is composed of smal...
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JP3598173B2 |
In the electron multiplier assembly 27, a dynode unit 10 is constructed from a plurality of dynodes 9 laminated one on another. Each dynode 9 is formed with multichannels 12 which are separated from one another by channel-separating port...
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JP3598184B2 |
This invention relates to a transmission type electron multiplier having a high secondary electron generation efficiency and having the structure capable of detecting positions of incidence of detected light, and also to an electron tube...
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JP2004311171A |
To provide a practical electron multiplier element which can be manufactured at low cost, and an electron multiplier device using the same.The electron multiplier element 9 comprises a phosphor 12 emitting light by dint of kinetic energy...
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JP2004533611A |
A micro-channel plate (MCP) detector system (30) comprising a MCP detector, a data acquisition unit (20), wherein the detector comprises a first and a second MCP electron multiplier (12, 14), one or more anodes (16) connected to the data...
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JPWO2003005408A1 |
The electron tube 10 includes a photomultiplier 16 having a large number of fine electron passage holes capable of emitting secondary electrons, a peripheral portion 18 surrounding the multiplying portion 16, and at least an MCP (photomu...
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JP3565529B2 |
To provide the semiconductor photocathode device which improves a quantum efficiency, concurrently increases its numerical aperture up to 100%, thereby structurally requires no need for separating picture elements, and also modulates sig...
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JP3565526B2 |
To provide a higher sensitive photoelectric emission surface having an active layer dissolving crystal defects and an electronic tube having the photoelectric emission surface. On the photoelectron emission surface, an epitaxial layer fo...
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JP3547901B2 |
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JP2004200174A |
To provide a metallic mold device for manufacturing MCP to manufacture MCP in a cheap and simple procedure and the MCP manufacturing method using the metallic mold device for manufacturing MCP.This method for manufacturing MCP includes a...
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JP3535094B2 |
To suppress generation of a short circuit due to destruction of insulation between a base of a pin for a power supply and a flange of an upper face of a sidewall when a high voltage is inputted into the pin for the power supply without e...
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JP3524249B2 |
To provide an electron tube which can suppress the decay of light to be detected incoming to a transmission type photoelectric surface and detects slight light. A mesa transmission-type photoelectric surface 30 is placed on a glass plate...
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JP2004131567A |
To provide an illuminator having a high speed of response and a high emission intensity, and to provide an electron beam detector, a scanning electron microscope and a mass spectrometer which use the same.When a nitride semi-conductor la...
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JP3518880B2 |
PURPOSE: To provide an excellent reflection type alkaline photoelectric surface by specifying an adhering weight of antimony in the reflection type alkaline photoelectric surface where antimony and plural kinds of alkaline metals are inc...
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JP2004095280A |
To enable multiple detection using a toroidal spectroscope for 360 degree rotation.The electron multiplier and the electron spectroscope perform multiple detection of energy-dispersed electrons with a toroidal spectroscope consisting an ...
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JP3495732B2 |
To improve the transmittance of light incident on a photomultiplier, and to uniform the output waveform, thereby improving the S/N ratio. In a side-on type photomultiplier, a flat plate electron lens electrode 11 for guiding photoelectro...
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JP2004040915A |
To reduce spike voltage generated while conducting switching between outputs of two DC-DC converters having different polarities of output voltage.Relays R3, R4 for shorting part of primary windings L1 of two transformers 12, 22 are prov...
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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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JP3473913B2 |
PURPOSE: To enhance the transmittance of light incident on a photomultiplier tube, make output waveforms uniform and enhance S/N ratio. CONSTITUTION: An electron lens electrode 11 for guiding toward a photomultiplying portion 3 photoelec...
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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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JP2003338260A |
To provide a semiconductor photoelectric face and a photodetection tube wherein gettering of the residual gas near the photoelectric face can be carried out also in a small-sized photodetection tube.The semiconductor photoelectric face i...
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JP3466712B2 |
PURPOSE: To provide an electron tube having high electron collection efficiency. CONSTITUTION: An accelerating electrode portion 244 projected at the through hole 242 of a dynode 24 on the upper stage is provided at the edge of the input...
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JP3455588B2 |
PURPOSE: To ensure the properties of joining and fitting a detector main body and a cooling device together and to improve operability in assembling them together by joining a heat conductor and the detector main body together via a cont...
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JP2003528427A |
A radiation converter has a radiation absorber for generating photons dependent on the intensity of incident x-ray radiation, a photocathode arranged downstream of the radiation absorber in the radiation propagation direction at a distan...
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JP2003263952A |
To provide a transmission secondary electron surface capable of efficient emission of secondary electrons by an incidence of primary electrons.The transmissive secondary electron surface comprises a secondary electron emitting layer 1 ma...
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JP2003257359A |
To provide an electron amplifier with a carbon nanotube and a method of manufacturing the same.This electron amplifier has a substrate 33 on which a plurality of through-holes 32 are formed, a resistive layer 35 which is formed on the in...
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JP3445663B2 |
PURPOSE: To provide a photomultiplier tube with highly accurate position resolving power and less distortion in the periphery. CONSTITUTION: Electrons multiplied in an electron multiplying part 20 pass through each electron passing hole ...
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JP3434576B2 |
PURPOSE: To obtain an electron multiplier tube which has a small nonuniformity of the electron multiplication factor. CONSTITUTION: Since spheres 28 are fixed held by the upper electrode plates and the lower electrode plates of dynodes 2...
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JP3434574B2 |
PURPOSE: To provide an electron multiplier tube which involves less dispersion in the multiplication factor. CONSTITUTION: A sphere 27 is fixed while pinched by the upper electrode plate and lower electrode plate of dinodes 24, and there...
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