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JP2008027580A |
To provide a photomultiplier tube that allows confirmation of a conductive state between a convergent electrode and a photocathode, while securing stable conduction between the convergent electrode and the photocathode; and to provide a ...
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JP4040789B2 |
A liquid scintillation counter 10 serving as an optical measurement apparatus includes: an HPD 24, a charge amplifier 26, a voltage amplifier 28, a comparator 30, a counter 32, a multi-channel analyzer 34, a display 38, and the like. The...
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JPWO2005086202A1 |
The photoelectron electrode converts the incident light into photoelectrons. The inside of the photoelectron amplification tube is kept in a vacuum and amplifies the photoelectrons converted by the photoelectron electrode. The photoelect...
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JP2007536703A |
Invention relates to detectors with high efficiency of light emission detection, and can be used in nuclear and laser technology, and also in technical and medical tomography etc. Silicon photoelectric multiplier (embodiment 1) comprises...
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JP4008354B2 |
In a photomultiplier, focusing pieces of a focusing electrode are formed with sufficient height that the photocathode in the adjacent channels cannot be viewed from the first and second stage dynodes of each channel in order to prevent l...
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JP4008353B2 |
In a photomultiplier, focusing pieces of a focusing electrode are formed with sufficient height that the photocathode in the adjacent channels cannot be viewed from the first and second stage dynodes of each channel in order to prevent l...
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JP4002167B2 |
The invention relates to a photocathode having a structure that permits a decrease in the radiant sensitivity at low temperatures is suppressed so that the S/N ratio is improved. In the photocathode, a light absorbing layer is formed on ...
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JP3973687B2 |
A transferred-electron photocathode or other opto-electronic device 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 anti-...
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JP3962345B2 |
To obtain a vacuum of high degree by enabling a vacuum chamber to be heated at a high temperature. A two-dimensional receiver 50 is provided with the vacuum chamber 52, and an photoelectric converter section 54 which emits electrons in a...
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JP3954478B2 |
To provide a semiconductor photocathode with high sensitivity in an infrared region and to provide a photoelectric tube using it. A semiconductor photocathode 1 has a p+ type semiconductor substrate 2 made of GaSb and a p- type light abs...
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JP2007520048A |
An embodiment of the invention is an electron multiplier including a first plate having an electron emissive first interior surface. A second plate has an electron emissive second interior surface. A voltage source is connected across th...
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JP3946794B2 |
To adjust a gain of a desired channel by providing a control electrode sheet of variable potential between a pair of sheets constituting a dynode and by disposing a grating only in specific active zones. An electron multiplier 11 consist...
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JP3944322B2 |
To provide a photomultiplier tube and a photomultiplier tube unit having an improved effective utilization area of a light-receiving face plate, and an enlarged fixing region of a bypass line on the light-receiving face plate, and to pro...
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JP3936516B2 |
To provide an easily producible lead silicate glass having good thermal stability and settable to have low surface resistance, a secondary electron multiplier manufactured by using the glass and a process for the production of the glass....
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JP2007157442A |
To provide a photomultiplier tube for detecting ultraviolet light which is capable of having solar-blind characteristics highly accurately.A photomultiplier tube 1 comprises: a vacuum container 10 having a light receiving plate 11 for re...
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JP2007516634A |
The imaging machine which may form part of a photocopier, scanner or the like has a light source, a platen ( 21 ) consisting of an upper, light transparent plate ( 23 ) and beneath the upper plate an image collector unit ( 25 ) and an im...
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JP3132425U |
To provide a new electron / ion / soft X-ray detector with a vacuum flange having a nominal diameter of 40 mm, which can detect electrons / ions / soft X-rays easily and inexpensively. A flange (2) having a nominal diameter of 40 mm, a s...
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JP3919332B2 |
To provide a photomultiplier tube and a spectrometer having a high- precision spectro-characteristic. This photomultiplier tube 1 is constituted by firmly fixing a filter member 20 additionally to a light receiving face plate 3, rather t...
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JP3919363B2 |
To provide a photomultiplier tube having improved simplicity of installation and wide usability, a photomultiplier tube unit having improved assembly workability of the photomultiplier tube at the time of forming a unit, and a radiation ...
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JP3908681B2 |
To provide the interior of a vacuum vessel with high degree of vacuum by performing high temperature heating. Detection parts 2X and 2Y comprise a plurality of electron collection electrodes to which a plurality of electrode pieces are s...
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JP2007080799A |
To provide a photo cathode, composed of a compound semiconductor, in which a wide dynamic range is realized and a gate operation at high speed is made possible, as well as an electron tube.The photo cathode 10 which can be applied for th...
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JP2007503681A |
A technique is provided for manufacturing a multi-anode photomultiplier tube for use in positron emission tomography (PET) detectors. One or more optical properties within an entrance window of the multi-anode photomultiplier tube are al...
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JP2007026785A |
To provide a photoelectric face having high characteristics, a photoelectron multiplier provided with it, an X-ray generator, an ultraviolet ray image tube, and an X-ray image intensifier.This photo electric face is that in which a mixed...
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JP3872419B2 |
To provide a photo cathode allowing a photo cathode plate to be surely held to a light transmission member with high workability. In this photo cathode 1, claw parts 16 of a holding member 7 fixed to the light transmission plate 3 is pre...
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JP2007500931A |
An improved electron multiplier bias network that limits the response of the multiplier when the multiplier is faced with very large input signals, but then permits the multiplier to recover quickly following the large input signal. In o...
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JP3863290B2 |
To provide a light quantity detector having a wide dynamic range of light quantity detection. A current signal output from an anode 12 of a photomultiplier tube 10 is converted into a voltage signal V1 by a current-voltage converting par...
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JP2006302843A |
To provide a photoelectric surface with high quantum efficiency, and to provide an electron tube provided with it.In the photoelectric surface 10, a buffer layer 14, a first GaN layer 16 and a second GaN layer 18 are formed on a substrat...
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JP2006524077A |
A large area detector ( 3 ) for use, for example, as an x-ray detector for medical imaging consists of a radiation sensitive detector ( 8 ) in combination with a monolithic amplification device consisting of a plurality of alternately st...
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JP2006522453A |
Mating faces of a microchannel plate (MCP) ( 50 ) and a multi-layer ceramic body ( 80 ) unit are deposited with a thin film having protuberances ( 84 ) using a suitable metal selected for optimum diffusion at a desired temperatures and p...
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JP2006522454A |
A microchannel plate (MCP) ( 50 ) and a dielectric insulator ( 80 ) are deposited with a thin film ( 54, 84 ) using a suitable metal selected for optimum diffusion. The metallized MCP ( 50 ) and dielectric insulator ( 80 ) are then align...
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JP2006237003A |
To provide a photoelectron multiplication system that is so structured as to be able to measure even an extremely weak optical signal with a structurally simple means; and to provide a microscope having the system.This photoelectron mult...
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JPWO2004112083A1 |
The measuring tube (11) is integrally provided with a tube head (17), a funnel-shaped connection portion (15), and a tube body portion (13) along the tube axis. The size of the cross section substantially perpendicular to the tube axis o...
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JP3795455B2 |
A large current watchdog circuit for a photodetector, the circuit including a current sensing device responsive to current flowing through the photodetector and a variable impedance transistor responsive to the current sensing device and...
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JPWO2004066338A1 |
The present invention relates to an alkali metal generator for forming a photoelectric surface or a secondary electron emitting surface capable of stably generating an alkali metal. The alkali metal generator (1) is used to form a photoe...
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JPWO2004066337A1 |
The present invention relates to an alkali metal generator for forming a photoelectric surface or a secondary electron emitting surface capable of stably generating an alkali metal. The alkali metal generator (1) is used to form a photoe...
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JP3762535B2 |
To provide a photoelectric cathode which absorbs light rays to be detected with a wavelength of 225 nm or longer and emitting photoelectrons to vacuum and to provide an electron tube provided with the photoelectric cathode. This photoele...
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JP2006066394A |
To allow a gating circuit to switch the responsivity of a photomultiplier tube between ON and OFF states by modulating the voltage bias of the one or more of its electrodes.The gating circuit capacitively couples a voltage pulse to the p...
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JP2006054183A |
To provide a photomultiplier tube in which condensing efficiency of radial rays incident, especially from the front side is improved, and the condensed radial rays can be connected much more efficiently to a photoelectric cathode, and ha...
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JP3748608B2 |
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JP3739926B2 |
To provide a photomultiplier of simple structure which is of a simple structure, which comprises a less number of part items, and which can be easily assembled. In a photomultiplier 1, a partition plate 9 is disposed to be adjacent to a ...
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JP3734570B2 |
To provide an electron tube which is embodied in a small size and can be assembled easily. An electron tube 1 is composed of a case 10, input face plate 21, stem 31, semiconductor element 40, and anode electrode 60. The case 10 contains ...
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JP3728352B2 |
To provide an electronic tube which is embodied in a small size and can be assembled easily. An electronic tube concerned 1 is composed of a case 10, input face plate 21, stem 31, semiconductor element 40, and anode electrode 60. The cas...
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JP2005276488A |
To provide a photomultiplier tube signal processor that increases the dynamic range of a photomultiplier tube apparatus, while avoiding its arrangement from becoming complex.The photomultiplier tube signal processor includes a dynode amp...
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JP3703576B2 |
To provide a side-on type photo-electron multiplier having a high versatility and also a high uniformity. A side-on type photo-electron multiplier concerned is structured so that the light fed from a light incident part 4 of a photo-tran...
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JP3691190B2 |
To provide a gate method of an electron multipler by which a gate noise is reduced and which is excellent in the multiplication factor ratio and by which high speed gating operation can be performed, and a bleeder circuit having a gate f...
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JP3688780B2 |
To provide a photomultiplier excellent in cathode uniformity by supporting the end sections of deposition rods with linear expansion absorbing means, and absorbing the elongation by the linear expansion of the deposition rods generated a...
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JP3688038B2 |
To provide a photoelectron multiplying tube using a long scale-shaped line focus type dynode of high electron collecting efficiency in the rear stage dynode. A device is provided with a tubular vacuum vessel 10 and an electron multiplier...
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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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