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JPH0650619B2 |
A photomultiplier tube comprises an evacuated envelope having a photoemissive cathode, a shield cup spaced from the cathode and an electron multiplier cage assembly abutting the shield cup. The cage assembly includes a pair of transverse...
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JPH0650616B2 |
A photomultiplier tube comprises an evacuated envelope having a photoemissive cathode, a shield cup spaced from the cathode and an electron multiplier cage assembly abutting the shield cup. The cage assembly includes a pair of transverse...
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JPH06181046A |
PURPOSE: To precisely measure the ion quantity in a wide measuring range by measuring the output of a secondary electron multiplying tube with a pulse counting means and a current measuring means simultaneously. CONSTITUTION: After wavef...
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JPH06176734A |
PURPOSE: To lower the manufacturing cost to reduce the price by forming fine holes passing through a substrate from the surface to the back surface thereof, and using a chemical gaseous phase growing method to grow up a secondary electro...
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JPH0644474B2 |
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JPH06150876A |
PURPOSE: To prevent cross talk between rows of dynodes due to electron leakage in a linear multianode photomultiplier or an electron multiplier on which a plurality of measuring beams and energy-rays of electrons, ions, etc., are inciden...
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JPH06150877A |
PURPOSE: To excellently carry out shutting control of output signals of a photo multiplier corresponding to gate signals by combining a bleeder circuit and photocouplers which provide gate signals to a gate of a field-effect transistor. ...
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JPH06152868A |
PURPOSE: To obtain a stable sensor output level by providing a fluorescent multiplier between a light source and an original so as to eliminate deficient illuminance even when an EL light source is used. CONSTITUTION: A light emitted fro...
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JPH06139995A |
PURPOSE: To provide a secondary electron multiplier without generating a leak of an accelerating electric field in the vicinity of an output end and without generating saturation of multiplying action caused by the leak of the accelerati...
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JPH06139994A |
PURPOSE: To provide a pulse counting secondary electron multiplier wherein a characteristic can be restored in a vacuum by providing a built-in baking device. CONSTITUTION: By scanning an ion 1, obtained by mass spectrometry, in a pulse ...
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JPH06111757A |
PURPOSE: To improve photoelectron collecting efficiency and lessen cross-talk between electron multiplying routes by installing a cup-like first diode comprising a flat bottom part and side face extended toward a photoelectric cathode an...
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JPH06103959A |
PURPOSE: To effectively make use of incident light to a dead space formed among a plurality of photoelectron multiplier tubes or at the end sections of photoelectron multiplier tube groups. CONSTITUTION: Plural ones out of a number of ph...
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JPH0627845B2 |
An optical window comprises a plurality of glass members and a plurality of reflective members each being formed between the adjacent glass members. Each reflective member is made of a glass medium which is the same as the glass member a...
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JPH0627853B2 |
PURPOSE:To detect fast pulse ions with high sensitivity by varying voltages applied to a 1st and a 2nd conversion electrodes independently of each other. CONSTITUTION:The conversion electrodes 3 and 5, an electron lead-out grating type e...
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JPH0623670B2 |
A photomultiplier tube has a multi-anode array consisting of a first group of anodes arranged in the Y-direction and a second group of anodes arranged in the X-direction in the form of a plurality of rows. Each of the anodes of the first...
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JPH0610969B2 |
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JPH065660Y2 |
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JPH067457B2 |
A cathode ray tube comprising a channel plate electron multiplier structure disposed between a source of electrons and a cathodoluminescent screen, the electron multiplier comprising a stack of n apertured dynodes. The dynodes are separa...
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JPH0613020A |
PURPOSE: To provide a secondary-electron multiplication device of stable operation, which has no possibility of thermal runaway due to heating even when a resistance value is reduced by providing a semiconductor ceramic composition, in w...
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JPH05325888A |
PURPOSE: To improve the sensitivity of the ion detector of a mass spectrometer. CONSTITUTION: An ion detecting device D is composed in a structure to inject the ion to a conversion dynode 3 to convert the ion into an electron, and to inj...
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JPH05314946A |
PURPOSE: To enable an ion detector composed of a combination of a CD and electronic booster to detect negative ion with a good efficiency. CONSTITUTION: A CD 4 is arranged onto a passage of ion I to be detected, and to the CD 4 a high vo...
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JPH0584016U |
[Purpose] To enable effective cooling of photomultiplier tubes in a unique cooling mode that does not cause fogging on both sides of the light transmission window, and to further reduce the size of the entire cooling device. [Constitutio...
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JPH0580985B2 |
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JPH0573177B2 |
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JPH05234565A |
PURPOSE: To provide a secondary electron multiplyer device having a high gain and the excellent linearity. CONSTITUTION: In a secondary electron multiplyer device, the secondary electron discharged by the collision of the electron or the...
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JPH0559539B2 |
A multiple section photomultiplier tube (10) constructed as a matrix of several independent tubes (14) in one envelope (12). The photocathode (28) to dynode (31-38) spacings are isolated by a separator configuration (20) built with walls...
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JPH05217547A |
PURPOSE: To obtain the constant ion-electron conversion efficiency accompanied with the change of sensitivity in the case where sensitivity can be varied, by installing a grid between an ion-electron conversion dinode and the electron in...
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JPH05205693A |
PURPOSE: To enable a brightness curve to be corrected in a simple way by making an output window of an image multiplier tube support an optical attenuation device, and by making a non-transmittancy of the device be larger in a central zo...
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JPH05205692A |
PURPOSE: To provide an optical image position measuring device of good performance. CONSTITUTION: A sensor of an optical image position measuring device 110 includes a photo-electric surface 502 to release an electron current generated a...
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JPH0552618B2 |
A method for producing a multichannel plate containing a plurality of generally parallel channels for use in structures for amplifying or converting optical images or other two-dimensional signal patterns by secondary electron multiplica...
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JPH0550807B2 |
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JPH05182597A |
PURPOSE: To enhance the supply efficiency of a high frequency power source by providing a matching circuit equipped with a switch which turns on and off a capacitor in accordance with the impedance change of a high frequency induction co...
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JPH0526550Y2 |
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JPH05159740A |
PURPOSE: To improve quantum efficiency by providing the first photoelectron generating means and the second photoelectron generating means for generating a photoelectron by using at least light of not contributing to generation of the ph...
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JPH05151930A |
PURPOSE: To provide a small-sized photoelectron multiplying element of simple configuration. CONSTITUTION: A photoelectron multiplexer element comprises a substrate 1, a photoelectron multiplying layer 3 formed by alternately laying ther...
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JPH05144410A |
PURPOSE: To provide a structure which is electrically independent and autonomous under a vacuum condition by applying an electronic engineering characteristic determined by a shape and disposition of metallic cavities with the use of cav...
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JPH0535998B2 |
An ion detector including a microchannel plate (MCP) with a hole through it provided along an undeflected trajectory of an ion beam, a faraday cup in position to receive ions passing through the hole, and a deflector to selectively defle...
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JPH0535542B2 |
A method for producing a multichannel plate containing metal dynodes and having a plurality of generally parallel channels for use in structures for amplifying or converting optical images or other two-dimensional signal patterns by seco...
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JPH0534771B2 |
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JPH0533486B2 |
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JPH05118914A |
PURPOSE:To provide an array type electromagnetic sensor capable of obtaining two dimensional information of electromagnetic wave with high accuracy without using a semiconductor, and providing less scattering in characteristics of respec...
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JPH05114385A |
PURPOSE: To reduce cross talk and to improve spatial resolution by laminating transmission type dynodes and insulating plates alternately and making the dynodes and the insulating plates with different members. CONSTITUTION: Mesh dynodes...
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JPH05110051A |
PURPOSE: To provide an electron multiplying device having an inner electron multiplying function and simple in structure and to easily realize a photoelectron emission device having an inner electron multiplying function and high in phot...
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JPH05109360A |
PURPOSE: To manufacture a large number of straw tubes having predetermined thin-size array efficiently at low costs by arranging conductors inside after the formation of divided portions, and closing opening portions so as to fill ionizi...
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JPH05110050A |
PURPOSE: To provide a secondary electron radiating surface having a high secondary electron radiant gain in spite of a simple structure and a secondary electron multiplying device using the radiating surface. CONSTITUTION: An electrode 3...
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JPH0589820A |
PURPOSE: To measure soft X-rays in the atmosphere efficiently and certainly by furnishing a Be-film in a photo-incident window for sensing the soft X-rays, evacuating a tube, and sealing it. CONSTITUTION: A photo-incident window 11 is op...
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JPH0582076A |
PURPOSE: To provide a photo-tube which can effectively collect photo-electrons generated by a photo-electric cathode, and also provide a radiations sensing device which is equipped with a good sensing efficiency for radiations. CONSTITUT...
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JPH0572344A |
PURPOSE: To suppress cross talk of radiation until it enters an electron multiplying element in a first stage, by providing an optical fiber plate in close contact with one side of a scintillator array and by providing a plurality of mic...
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JPH0521191B2 |
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JPH0560601A |
PURPOSE:To provide a high-speed photodetector which can generate an output signal at a prescribed timing irrespective of the intensity change or the like of incident light. CONSTITUTION:An electron tube 2 has a photoelectric face 4, a tr...
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