| Document |
Document Title |
|
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...
|
|
JP3433537B2 |
PURPOSE: To provide a semiconductor photo-electric cathode device wherein the quantum efficiency is improved, and the aperture ratio is 100%, the separation of picture elements in the structure is not required, and the modulation of a si...
|
|
JP3429671B2 |
To provide a photoelectric cathode with good sensitivity in an infrared region and an electron tube using it. A photoelectric cathode is formed to emit photoelectrons corresponding to an incident light in a infrared region. In this case,...
|
|
JP2003158875A |
To obtain a small-power high-voltage generating circuit which is in high efficiency, small-sized, large in output current, and little in ripple voltage.Power loss is reduced by inserting a diode into a primary switching circuit. Moreover...
|
|
JP3401044B2 |
PURPOSE: To provide a photomultiplier by which reliability can be improved by noise reduction and workability can be improved by reduction of the number of part items. CONSTITUTION: A converging electrode 7 formed of a stainless steel pl...
|
|
JP3392240B2 |
PURPOSE: To reduce dispersion of incident efficiency on a next-state dynode on the basis of electron release position in a dynode. CONSTITUTION: A mesh electrode 9 is disposed in an incident opening portion 7a, and dynode group Dy compri...
|
|
JP3363537B2 |
PURPOSE: To generate an output signal consuming low electric power and presenting a high SN ratio. CONSTITUTION: A DC voltage signal fed from a DC power supply 920 is converted by a DC/AC converter 110 into an AC voltage signal (V1) and ...
|
|
JP3361367B2 |
|
|
JP3352491B2 |
|
|
JP3342530B2 |
|
|
JP2002313238A |
To reduce defects due to fragmented particles inside the photomultiplier tube(PMT).The photomultiplier tube 10 includes a dynode 16 that is jointed electrically to the corresponding lead wire 20. The photomultiplier tube 10 contains free...
|
|
JP3312771B2 |
PURPOSE: To provide an electron multiplier tube which provides uniform sensitivity for various positions of a photoelectric surface and output pulses proportional to the energy of incoming light. CONSTITUTION: An electron multiplier 6 co...
|
|
JP3312772B2 |
PURPOSE: To provide uniform sensitivity for various positions of a photoelectric surface. CONSTITUTION: An electron multiplier 6 comprises dynodes 7 in the form of a square, flat plate, stacked one atop another in N stages. The dynodes o...
|
|
JP3312770B2 |
PURPOSE: To provide an electron multiplier tube which restrains generation of a field discharge at a welded portion even when miniaturized and reduces noise. CONSTITUTION: An electron multiplier tube has an electron multiplier comprising...
|
|
JP2002520798A |
A photosensor comprises a cathode portion (111) sensitive to radiation and/or particles, an anode portion (114) receiving electrons, an evacuated channel (112, 113, 200) having the cathode portion attached to its one end portion in a vac...
|
|
JP3294981B2 |
To require no high voltage switching relay by utilizing floating so as to avoid the withstand voltage increase of a high voltage power source. Two high voltage power source 7, 8 which can be complementarily switched between 0V and predet...
|
|
JP2002150928A |
To provide a semiconductor photocathode that has a light-absorbing layer, formed of AlxGa1-x(0≤x≤1) and has high quantum efficiency.An ultraviolet region light, made to be incident from a surface layer 5 side goes through the surface...
|
|
JP2002515162A |
(57) [Summary] The present invention relates to a vacuum housing for a photomultiplier tube formed from a dielectric material in a single structure and holding a photocathode, a microchannel plate, and an anode in a vacuum environment. T...
|
|
JP2002512737A |
An element with elongated, high aspect ratio channels such as microchannel plate is fabricated by electrochemical etching of a p-type silicon element in a electrolyte to form channels extending through the element. The electrolyte may be...
|
|
JP2002508505A |
A method of providing a photomultiplier tube (PMT) having a desired gain and transit time comprising: a) adjusting the gain of the PMT such that it has a desired gain; and b) adjusting the transit time of the PMT such that it has a desir...
|
|
JP3267644B2 |
PURPOSE: To reduce the fluctuation of electron transit time at the time of cascade multiplication. CONSTITUTION: In a glass tube 101, a photoelectric cathode 103 on the inner wall, focus electrodes 120,121, dynodes 104-113, and an anode ...
|
|
JP3260902B2 |
PURPOSE: To provide an electron multiplier by which dispersion of an electron multiplication factor can be reduced and a noise can be also reduced. CONSTITUTION: An electron multiplier has plural dynodes 7 constituting an electron multip...
|
|
JP3260901B2 |
PURPOSE: To provide an electron multiplier which can be manufactured easily even when it is downsized. CONSTITUTION: An electron multiplier has plural dynodes 7 constituting an electron multiplying part 5 to multiply an incident electron...
|
|
JP2001351562A |
To provide an electron multiplier restrained from generating electric discharge such as field emission or light emission between a first stage dynode electrode and a second stage dynode electrode.This electron multiplier has a first stag...
|
|
JP2001351566A |
To provide an ion detector of high sensitivity with small dimensions in an ion incident direction.This ion detector 1 has an upper metal plate and a lower metal plate 12 arranged parallel with each other. The upper metal plate is formed ...
|
|
JP2001351509A |
To provide a micro-channel plate(MCP) having excellent weather resistance and capable of sufficiently suppressing its warping.In this MCP 1, an outer peripheral glass 5 is arranged around a plate-like channel glass 3 provided with a plur...
|
|
JP2001319565A |
To provide a photocathode capable of easily and effectively improving quantum efficiency on a photoelectric face.The photocathode comprises a ferroelectric substrate 12 and a photoelectric face 11 formed on the ferroelectric substrate 12...
|
|
JP3220245B2 |
PURPOSE: To provide a high-sensitive photomultiplier capable of effectively utilizing light entered in a light incident window. CONSTITUTION: In a head-on type photomultiplier in which one side end surface of a translucent glass bulb 1 i...
|
|
JP3216944B2 |
PURPOSE: To provide a reflex type photoelectric tube of such a structure as embodied in a small size, suitable for massproducing and unlikely to go into breakage, while a sufficient sensitivity for incident beam of light is maintained. C...
|
|
JP3215486B2 |
PURPOSE: To provide a photomultiplier capable of realizing the remarkable noise reduction, the reliable prevention of deterioration of an electron multiplier the prevention of generation of a gas at the time of fusing a glass and the rem...
|
|
JP2001273867A |
To provide a micro channel detector of a simple structure. An anode electrode 21 is disposed on the output side of MCP 20, a dielectric member 23 is sandwiched between the anode electrode 21 and a ground electrode 22, a signal based on t...
|
|
JP2001256908A |
To provide a plane X-ray image tube for forming observation images with no change of a space between metal plates for an electronic multiplication apparatus and no decrease in resolution due to distortion of the metal plates.The X-ray im...
|
|
JP2001229862A |
To provide a flat-surface-type X-ray image tube for providing an observation image having both a good resolution and a good contrast.An X-ray image detector 1 has an electron duplator 5 where an (n-1)-th stage of metal plate 54 positione...
|
|
JP2001202873A |
To provide a cathode for photoelectron or secondary electron emission in which quantum efficiency, more particularly red color sensitivity can be improved and the spectrophoto sensitivity or secondary electron emission property can be im...
|
|
JP2001196023A |
To provide a photomultiplier having improved anode assembling while an insulation substrate is prevented from static change, and mutually disposing anode plates with high density. In this photomultiplier, each anode plate 21 can easily b...
|
|
JP3186812B2 |
PURPOSE: To obtain a secondary electron multiplier, which can switch the gain by only changing the voltage to be applied to some electrodes among the whole, by arranging electrodes for generating secondary electron in multiple lines. CON...
|
|
JP2001508917A |
This invention relates to a photomultiplier tube including: a photocathode PK with a semi-transparent photo-sensitive layer provided to emit an electron flux towards the inside of the tube, focusing optics comprising a first dynode D1, c...
|
|
JP3179537B2 |
PURPOSE: To lessen the dark current in a photomultiplier including a photoelectric surface, a multiplier for multiplying the photoelectrons emitted therefrom, and an anode electrode for collecting electrons, by providing a substrate ther...
|
|
JP2001155669A |
To provide an X-ray image detector that allows reducing the total size of an apparatus attached to an X-ray image tube and providing a visible image or an electrical image without distortion.The X-ray image detector 1 of the invention is...
|
|
JP2001135267A |
To constitute a radiation converter with radiation absorber for generating photons in relation to intensity of the colliding radiation, so as to induce a signal that generates a well diagnosable image signal in a signal processing unit c...
|
|
JP3154831B2 |
PURPOSE: To provide an inductively coupled plasma mass spectrometer capable of measuring the stable dual mode by easily changing the gain of a secondary electron multiplier tube at a high speed. CONSTITUTION: An inductively coupled plasm...
|
|
JP2001093407A |
To provide a semiconductor photoelectric cathode having a wavelength classifying function, and an optical detector and an optical detection equipment using the semiconductor photoelectric cathode. A semiconductor photoelectric cathode ac...
|
|
JP3145134B2 |
|
|
JP3141635B2 |
|
|
JP3133167B2 |
PURPOSE: To realize a highly sensitive induction coupling plasma mass spectroscope without shortening the life of a secondary photomultiplier tube. CONSTITUTION: An induction coupling plasma mass spectroscope excites a sample using a hig...
|
|
JP2000357487A |
To implement automatic inspection of inconvenience in wirings such as contact failure while the condition is kept the same as at service.A control part 23 turns on a switch 21 in the condition that ions are not generated so that a high v...
|
|
JP2000356594A |
To expand a dynamic range without extending measurement or averaging time by selecting output from a discriminator/counter or an electric charge integrator or output from the linear combination of both of them based on the intensity of a...
|
|
JP2000357449A |
To allow film formation on low softening substrate or low melting- point substrate and provide a photoelectric surface with high quantum efficiency, by making the photoelectric surface or emitting photoelectrons with incident light out o...
|
|
JP3113902B2 |
The invention is directed to continuous dynodes formed by thin film processing techniques. According to one embodiment of the invention, a continuous dynode is disclosed in which at least one layer is formed by reacting a vapour in the p...
|
|
JP2000311649A |
To prolong a life until replacement is required by providing a plurality of conversion dynodes, and providing a switching means selecting to which conversion dynode a high voltage should be applied. A transfer switch 7 selects a conversi...
|
