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WO/1999/066534A1 |
To prevent the deterioration in sensitivity of the photoelectric surface (20) of an electron tube and maintain stable output for a long time, an ion confinement electrode (22) and an ion trap electrode (23) are provided between the photo...
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WO/1999/063573A1 |
A photomultiplier unit comprising photomultipliers densely assembled and thereby having an improved light sensing efficiency. The outer peripheral faces (2b) of metal-made side tubes (2) of photomultipliers (1) are in face contact with o...
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WO/1999/063574A1 |
With the outer wall surface (2b) of a metal-made side tube (2) of a photomultiplier (1) flush with the edge face (4b) of a stem plate (4), the side tube (2) is secured to the stem plate (4) by welding, and thereby there is no projection ...
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WO/1999/063575A1 |
To reduce the size of a photomultiplier (1), a side tube (2) is secured by welding to a stem plate (4) while an inner wall face (2c) of the lower end (2a) of the side tube (2) is maintained to be in contact with an edge face (4b) of the ...
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WO/1999/060602A1 |
An improved microchannel plate structure (10) has microchannels (12) with a wall (14) surface portion (16) having an improved retention of indigenous constituents (i.e., selected elements and/or chemical compounds) which allow the glass ...
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WO/1999/059186A1 |
A small-sized electronic tube in which a photoelectric surface is efficiently cooled while preventing the formation of dew. A housing (20) has an airtight structure that encloses a case (21) and a socket (23). A photomultiplier tube (10)...
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WO/1999/049494A1 |
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...
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WO/1999/048121A1 |
A field emission device with a microchannel gain element provides a plurality of field emission or 'cold' cathodes (102) formed generally into an array. The cold cathodes are typically modulated by a grid (108) having a driving voltage. ...
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WO/1999/037979A1 |
According to the present invention, a photomultiplier tube is used with a high-speed feedback mechanism to continuously modulate the gain of the tube in response to the size of the input signal. The gain of the tube and the anode current...
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WO/1999/009577A1 |
The electron multiplier array consists of alternate layers of metallic material (16) and insulator (14) deposited over an array of anodes (12) on a substrate. The layers are deposited in turn on the substrate and holes are etched through...
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WO/1998/057353A1 |
An electron multiplier which cascade-multiplies incident electrons and a photomultiplier provided with the electron multiplier. The electron multiplier and the photomultiplier are each provided with a discharge suppressing structure whic...
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WO/1998/050604A1 |
An element with elongated, high aspect ratio channels (30) such as microchannel plate is fabricated by electrochemical etching of a p-type silicon element (10) in a electrolyte (26) to form channels extending through the element. The ele...
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WO/1998/033202A1 |
The invention concerns a photoelectric multiplier tube comprising: a photocathode PK with a semitransparent photosensitive film for emitting towards the interior of a tube a flux of electrons; a focusing optic comprising a first concave ...
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WO/1998/020518A1 |
An electron multiplier which can effectively prevent the occurrence of electric field leakage on the front side of an MCP caused by a voltage applied across the MCP and, at the same time, has such a structure that can be easily attached ...
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WO/1998/019341A1 |
A microdynode electron multiplier provides numerous microchannels extending parallel to one another through a layered structure (20) incorporating insulating spacer layers (38) and dynode layers (36) which either incorporate a conductive...
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WO/1998/013857A1 |
An arrangement for enhanced absorption of radiation comprises a radiation receiving surface having an abutting array of substantially contiguous protruding surfaces each having a surface remote from said radiation receiving surface which...
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WO/1998/006217A1 |
A video display system utilizing a video source (12) and an image intensifier (14) having a substrate (18). A video image source (12) positions at the substrate to provide a photon signal (22). A photocathode element (38) at the substrat...
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WO/1997/040516A1 |
The scintigraphy apparatus intended to reconstitute an image of a material or member marked by means of an isotope emitting a radioactive radiation comprises a collimator (10), a scintillator (13) adapted to absorb at least a portion of ...
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WO/1997/039473A1 |
The present invention relates to a particle and photon detector and to a method for application in such detection. The detector includes a body having a beam-incident surface (8) capable of releasing secondary electrons in numbers propor...
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WO/1997/027615A1 |
A photomultiplier device is made from a number of layers (2, 4, 6) bonded together. The layers include a photocathode layer (2) which emits photoelectrons when a photon is incident upon it, an electron multiplying layer (4) which multipl...
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WO/1997/019471A1 |
A transferred-electron photocathode or other opto-electronic device (24) having one light receiving side and one electronic side, in which multiple photocathodes are processed concurrently on a wafer for front and back side contacts and ...
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WO/1997/018579A1 |
A low-vacuum mass spectrometer includes a drift tube (2) having a gas inlet (4) and an ionization region (6) at one end thereof; a power source (22) for supplying the required high tension; a vacuum pump port (10) connected to the drift ...
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WO/1997/011479A1 |
A 360� surround photon detector/electron multiplier having: i) a continuous annular inner wall formed of thin light-transmissive material defining an internal coaxial detection chamber; ii) an annular enclosed evacuated envelope integr...
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WO/1996/036985A1 |
A method for fabricating an electron multiplier is provided. The method consists of depositing a random channel layer on a substrate such that the random channel layer is capable of producing a cascade secondary electron emission in resp...
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WO/1996/025758A1 |
A gas impervious channel electron multiplier (10) having monolithic body (12) composed of a glass-ceramic composite, the body (12) defining an interior passageway (16) extending from an entrance port (19) to an exit port (18), the outer ...
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WO/1996/017372A1 |
A hybrid photomultiplier tube includes a photocathode (130), focusing rings (134, 136), a photodiode (132), and a collection anode (120) disposed in a detector body (110). A vacuum envelope (116) encloses a vacuum region between the phot...
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WO/1996/008034A1 |
A mass analyzer system uses a simultaneous mode electron multiplier detector which outputs both a pulse count and an analog signal. Depending on the ion flux intensity, the signals define a pulse count only region in which the pulse coun...
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WO/1995/032518A1 |
A photomultiplier uses an avalanche photodiode (24) as a position-sensitive anode. The envelope (20) of the photomultiplier has a flat input end (2'). Electrically conductive regions (14) mounted to the input end are configured to produc...
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WO/1995/022834A1 |
The object of the invention is a photon or particle detector (10) which comprises a transmission dynode (30) situated in a vacuum. The detector comprises a monolithically fabricated semiconductor structure in which electrons are arranged...
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WO/1995/009433A1 |
An image intensifier tube (40) that utilizes a photoresponsive layer for producing electrons in response to received radiation, a solid state electron amplifier for multiplying the electrons produced by the photoresponsive layer, a cold ...
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WO/1995/003623A1 |
Methods for linear photomultiplier gain control over a large dynamic range are disclosed. The central dynodes (d3 - d7) of the photomultiplier (1) are powered via a very wide pass-band, low-damping transformer (25) which is in turn power...
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WO/1994/001882A1 |
Photoemitters are used to convert received photons of light (or other electromagnetic radiation) into electrons, and it is common to employ an electron multiplier to amplify the low electron flux for use by an imaging or a counting syste...
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WO/1993/010553A1 |
A technique that corrects photodetector non-linearity without increasing the noise level in the detector signal. The detector (10) is coupled to a preamplifier (100) characterized by the absence of positive feedback, and the preamplifier...
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WO/1992/016960A1 |
A method for detection of radiation by means of an electron-multiplier instrument (1) with a microchannel plate (3) provides for retarding an electric field between the output electrode (6) of the plate (3) and the collector (4) by feedi...
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WO/1992/002946A1 |
A channel electron multiplier phototube having a channel electron multiplier, a transparent faceplate, and an anode assembly. The channel electron multiplier includes an insulating body (32) having a curved passageway extending therethro...
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WO/1991/000612A1 |
The invention is a sensor for electrical charge fabricated as an integrated circuit and comprising an electrode (1) for receiving charge, a potential-sensitive switching means (2) for generating a pulse whenever the charge received on th...
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WO/1990/002415A1 |
In a photomultiplier having gain stabilization means, said gain stabilization means comprises a light source which is adapted to produce light flashes to be detected by the photomultiplier, means connected to one of the first dynodes of ...
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WO/1990/000307A1 |
An image intensifier tube is provided with a channel plate. The channel plate's channels are open both at the cathode side and at the anode side. A high frequency alternating electric field is generated in the space between the cathode a...
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WO/1989/009484A1 |
Channel plates for image intensifier tubes have an end-spoiling that continues into the channels over at least a distance greater than twice the channel diameter. In the channels the thicknesses of the end-spoiling decrease with increasi...
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WO/1989/008020A1 |
Light collectors (10) formed by rolling one edge (18) of a sheet of transparent thermoplastic material (30) into an annular configuration, while keeping an opposite edge (12) flat suffer from light collection inefficiency caused by local...
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WO/1988/004105A1 |
A channel electron multiplier (10) having a semiconductive secondary emissive coating (20) on the walls of said channel (16) wherein said electron multiplier is a monolithic ceramic body (12) and said channel therein preferably is three ...
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WO/1985/002058A1 |
The divider of electrical signals comprises a set of resistive elements, provided with current taps (3, 4), and current collectors (7), which are intended for the interaction with any of the current taps (3, 4). The resistive elements ar...
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WO/1983/002323A1 |
A photomultiplier detector protection system and method utilizing a negative feedback loop to maintain the photomultiplier detector output below a predetermined output. The feedback loop comprises a comparator (38) reponsive to the photo...
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WO/1983/000772A1 |
Electron multiplier (10) of the kind in which a charge current is amplified by successive passage to and secondary emission of electrons from dynodes (16) arranged in two opposed rows (12, 14). The multiplier is arranged for application ...
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JP7445098B1 |
The electron tube 1 includes a photocathode 3 that converts incident light into photoelectrons, a plurality of dynodes 11 and an anode 6, and an insulating substrate that holds the dynodes 11 and 11 and the dynodes 11 and the anode 6 in ...
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JP7436761B1 |
The electron tube includes a photoelectric conversion section that emits photoelectrons according to incident light, an electron detection section that receives photoelectrons from the photoelectric conversion section, and a gate electro...
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JP2024024112A |
An object of the present invention is to provide an electron multiplier tube with an improved structure. The invention may be implemented in the form of a detector that includes one or more electron emitting surfaces. The detector includ...
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JP7433390B2 |
Components of scientific analytical equipment and to complete items of analytic equipment. An apparatus and methods useful for detecting an ion in mass spectrometry applications are provided. The apparatus may include an electron multipl...
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JP7432459B2 |
A CEM and an ion detector of one embodiment have a structure for enabling ion detection with higher sensitivity than the prior art. A channel electron multiplier includes a channel body, an input-side conductive layer, an output-side con...
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JP2024015761A |
[Problem] To provide a vacuum tube whose sensitivity can be restored. The present invention has a main body extending in a cylindrical shape along a tube axis and an input window provided at one end of the main body in the direction alon...
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