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JP4542302B2 |
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JP2010177120A |
To enable size reduction and reduce the cost of an ion detector which is equipped with a Faraday cup and a secondary electron multiplier.The ion detector 10 is provided with a case 11 with an opening 12 where ion beams pass through; a Fa...
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JP4498545B2 |
To provide an ion detector and an electron multiplier having few false signals caused by gas molecules while preventing an accident caused by touching wiring or the like when replacing the electron multiplier. This ion detector 1 has the...
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JP4473585B2 |
A photomultiplier tube includes: a cathode 3, a plurality of dynodes 107, and a electron lens forming electrode 115. The cathode 3 emits electrons in response to incident light. The plurality of dynodes 107 multiplies electrons emitted f...
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JP4471609B2 |
An envelope (2) has a glass bulb body (4) and a glass bulb base (5). The glass bulb body (4) includes an upper hemisphere (4a) and a lower hemisphere (4b). The upper hemisphere (4b) is curved in a substantially spherical shape. The lower...
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JP4471608B2 |
In an electron tube (1), an insulating tube (9) protrudes inside an envelope (2). One end of the insulating tube (9) is connected to the envelope (2). An APD (15) is provided on the other end of the insulating tube (9). A ground voltage ...
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JP4459635B2 |
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JP4440887B2 |
The present invention relates to an alkali metal generating agent and others for formation of a photo-cathode or a secondary-electron emitting surface capable of stably generating an alkali metal. The alkali metal generating agent is use...
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JP2010054364A |
To provide a drive circuit of a photomultiplier tube capable of holding a stable dynode voltage, while suppressing power consumption and maintaining proper linearity of the output current, with respect to the quantity of incident light.A...
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JP4429750B2 |
A mass spectrometer detector having a coupling capacitor including an anode that is placed at a high potential of say -4.9 kV. An annular electrode is placed outside the anode. A voltage of say -5 kV is applied to the annular electrode. ...
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JP4424950B2 |
An insulating tube (9) has one end and another end. An APD (15) is provided outside the one end of the insulating tube (9). The another end of the insulating tube (9) is air-tightly connected to an outer flange (120) through a stem inner...
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JP4409764B2 |
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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JP4408261B2 |
A light detection device 1 comprises a photocathode 30 and an electron multiplier 50, which are positioned inside a vacuum container 10. A photomultiplier tube is arranged from these components. Light detection device 1 is equipped with ...
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JP4402478B2 |
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JP2009289693A |
To provide an ion detector capable of widening an output range in which a response speed is high and linearity can be maintained.The ion detector includes an MCP 13 and a plurality of flat shaped dynodes DY1-DY9 each having a plurality o...
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JP2009283371A |
To air-tightly seal a vacuum cell with high yields by soldering an anode substrate with an external support body.The FED sensor and a manufacturing method thereof are provided, the method including a cathode substrate 10, an electron emi...
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JP2009259728A |
To provide a signal processing circuit and a signal processing system of a photomultiplier tube for expanding a dynamic range by a simple circuit constitution.In the signal processing circuit 20, by constituting a current mirror circuit ...
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JP4356996B2 |
A microchannel plate (P) for receiving photoelectrons includes a plate-like substrate web (W) formed from a plurality of micro-tubules ( 10 ) of a single type of cladding glass ( 12 ) and defining a pair of opposite faces ( 14 a and 14 b...
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JP2009217996A |
To provide a photo-electric cathode with a high stability against temperature changes.The photo-electric cathode 35 of one embodiment has light transmission performance and includes a first and a second face-plates 31, 32 of which one ma...
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JPWO2007129492A1 |
The present invention relates to a photomultiplier tube with a structure for improving response time characteristics. The electron multiplier of the photomultiplier tube has an upper unit (200) and a lower unit. The upper unit includes a...
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JP4331147B2 |
An object is to sufficiently keep the airtightness in a vacuum container even when it is made smaller. A photomultiplier tube 1 comprises a flat sheet-like lower substrate 4, a casing-like frame 3b erected on the lower substrate 4, an up...
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JP2009200044A |
To significantly improve response time characteristics by a structure enabling mass production.A dynode unit (DY1) at a second stage from a photocathode (200) supports a first dynode receiving photoelectrons from the photocathode (200), ...
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JP2009129904A |
To provide an electron gain device equipped with a rectangular slot realizing close clearance between an electron detection device and the MCP.The microchannel plate (MCP) includes an active part having an input surface area receiving el...
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JP2009123706A |
To form microchannels by means of bending processing by subjecting an acid etchable glass to a bending processing, without reducing the diameter size of the microchannels.A microchannel plate (MCP) is formed from a boule. The MCP include...
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JP4268463B2 |
A time-resolved measurement apparatus (100) reads a detection timing pulse from an MCP (24) in a front-side MCP stack (30) in a photomultiplier tube (14). A detection timing of a photon is determined based on this pulse. A principal comp...
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JP4268461B2 |
A time-resolved measurement apparatus (100) acquires a detection timing pulse from an output terminal (34) attached to a micro channel plate (30) in a photomultiplier tube (14). A position-time measuring circuit (16) generates a signal i...
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JP2009105024A |
To provide a connection interface device of a photomultiplier tube.The connection interface device the photomultiplier tube includes a photoelectron multiplying module and a circuit board. A plurality of electric pins are provided on a f...
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JP4256212B2 |
Since a peripheral part of the sapphire plate 2 is airtightly thermally crimped to an end face (window peripheral part) of a kovar metal tube 1A surrounding a light entering window via a seal ring 7 made of aluminum, a lattice defect is ...
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JP4246879B2 |
A dynode (8) constituting an electron multiplier or a photomultiplier is provided with eight rows of channels (15) each defined by an outer frame (16) and a partitioning part (17) of the dynode (8). In each channel (15), a plurality of e...
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JP4249548B2 |
A venetian blind dynode 5A of the first stage collects incident electrons efficiently, multiplies these electrons, and emits the multiplied secondary electrons to a metal channel dynode 5B of the second stage. By metal channel dynodes 5B...
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JP4246995B2 |
In an electron beam detector, a light guide optically couples a fluorescence emitting surface of the compound semiconductor substrate to a light incident surface of the photodetector, and physically connects the compound semiconductor su...
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JP4237308B2 |
A metal side tube (2), a glass faceplate (3), and a stem plate () constitute a hermetically sealed vessel (5) for a photomultiplier tube. An edge portion (20) is provided at on open end (A) of the side tube (2). The edge portion (2) is e...
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JP4230606B2 |
In a photomultiplier tube 1, an etching technique is used to form electron multiplying holes 8a in plate-shaped dynodes 8 that are stacked in multiple layers. To perform this etching process, a pattern frame 22 is disposed around a plate...
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JP4231121B2 |
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JP4231120B2 |
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JP4231123B2 |
To prevent the deterioration in sensitivity of the photocathode (20) of an electron tube and maintain stable output for a long time, an ion confining electrode (22) and an ion trap electrode (23) are provided between the photocathode (20...
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JP4185980B2 |
A porous electroconductive material having light transmitting property which comprises a porous glass and, formed on the outer surface thereof and also on the surface inside fine pores thereof, an electroconductive oxide film; and a meth...
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JP4173134B2 |
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JP4166990B2 |
A transmission type photocathode includes a light absorption layer 1 formed of diamond or a material containing diamond as a main component, a supporting frame 21 for reinforcing the mechanical strength of the light absorption layer 1, a...
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JP4146529B2 |
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JP4137121B2 |
A gamma ray detector having a very high time resolution. By using CsBr (cesium bromide) as a scintillator crystal and a MCP built-in photoelectron multiplier tube as a photoelectron multiplier, much larger time resolution are obtained in...
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JP4132305B2 |
A hermetically sealed vessel for a photomultiplier tube made of a side tube (2), a faceplate and a stem plate. The side tube is made by assembling a plurality of plates (80) with a curled end. An end face (81a) on a corner (81) at an ope...
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JP4128654B2 |
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JP4118965B2 |
In a microchannel plate (50), a conductive film (52) is formed on an electron input surface of a dynode (51) where the plurality of channels (54) are arranged. The conductive film (52) is made of material that can transmit light that has...
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JP4108905B2 |
An inner surface of an electron-multiplier hole (14) includes a first curved surface (19a) and a second curved surface (19b) that face each other. The first curved surface (19a) extends from an edge of an input opening (14a) in such a wa...
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JP2008098173A |
To provide a photomultiplier tube achieving great improvement of response time characteristics with a structure capable of producing a large volume.The photomultiplier tube is provided with a closed vessel 100. In the closed vessel 100, ...
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JP2008098175A |
To provide a photomultiplier tube achieving great improvement of response time characteristics with a structure capable of producing a large volume.The photomultiplier tube is provided with a closed vessel (100). In the closed vessel (10...
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JP2008098172A |
To provide a photomultiplier tube achieving great improvement of response time characteristics with a structure capable of producing a large volume.The photomultiplier tube is provided with a closed vessel (100). The closed vessel (100) ...
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JP2008098174A |
To provide a photomultiplier tube achieving great improvement of response time characteristics with a structure capable of producing a large volume.The photomultiplier tube is provided with an electron multiplier (500) for carrying out c...
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JPWO2005091333A1 |
In the photoelectron image double tube of the present invention, a standing focusing electrode (20) is provided between the first-stage dynode (Dy1) and the second-stage dynode (Dy2) and the plurality of-stage dynodes below the third-sta...
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