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JP5497331B2 |
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JP2014078502A |
To provide an MCP unit that has a structure for implementing a stable time response characteristic independent of an external environment, an MCP detector including the MCP unit, and a time-of-flight analyzer including the MCP detector.T...
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JP5479946B2 |
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JP5452038B2 |
An electron multiplier that can easily obtain characteristics according to a purpose is provided. By bonding a marginal portion 23 of an MCP 2 and a marginal portion 33 of an MCP 3 to each other via a conductive spacer layer 7, a gap 12 ...
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JP5439483B2 |
A voltage divider for supplying a photomultiplier. The voltage divider may include a plurality of active circuits, each of the active circuits configured to establish divided voltage levels at separate ports of a photomultiplier.
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JP5439079B2 |
An electron tube of the present invention includes: a vacuum vessel including a side tube portion made of glass and a plate-like member blocking one opening of the side tube portion and made of glass; a first metal film provided on an en...
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JP5396225B2 |
To provide a conversion-type ion detection unit including a mechanism for converting ions into electrons and amplifying the electrons obtained by the conversion, which enables a reduction in noise caused by stray light. The ion detection...
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JP5391330B2 |
a photomultiplier tube comprises a photocathode (14), an electron multiplier (10), an electron collector (11), and a power lead (12), wherein the photocathode (14) and the electron multiplier (10) are disposed in a sealed transparent vac...
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JP5388735B2 |
An MCP has a rectangular plate shape and has a porous part, to which a plurality of pores (channels) penetrating in the thickness direction are disposed, and a poreless part including a solid glass or the like to which the channels are n...
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JP5350679B2 |
To provide an ion detector can achieve miniaturization by decreasing the number of components and then by facilitating assembling work while sufficiently ensuring positional accuracy between the components. A Faraday cup 4 to detect ions...
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JP5345784B2 |
A single-channel photomultiplier tube having a sealed envelope, of which one wall includes an internal face having a concavity with a central axis, turned toward the inside of the tube, having a plane of symmetry and containing a photoca...
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JP5342769B2 |
The present invention relates to a photocathode (1A) having a structure to dramatically improve the effective quantum efficiency in comparison with that of a conventional art, an photomultiplier and an electron tube. The photocathode com...
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JP5335893B2 |
Methods for manufacturing a gas electron multiplier. One method comprises a step of preparing a blank sheet comprised of an insulating sheet with first and second metal layers on its surface, a first metal layer hole forming step in whic...
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JP5330083B2 |
To suppress reduction in breakdown voltage even in the case of miniaturization. The photomultiplier tube 1 includes: a housing 5 consisting of an upper frame 2 and a lower frame 4; an electron multiplier section 33 having dynodes 33a to ...
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JP5305053B2 |
In an ion detector, power supplies (21 through 23) generating independently controllable voltages are provided to respectively apply voltages to first to fifth dynodes (11 through 15), a final dynode (16), and an anode (17) in a secondar...
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JP5304749B2 |
A vacuum analyzer including a vacuum reaction chamber; a gas source; a flow rate-restricting resistance tube connected to the reaction chamber; a pressure detection device disposed upstream from the flow rate-restricting resistance tube;...
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JP5302678B2 |
Inspection systems, circuits and methods are provided to enhance defect detection by addressing anode saturation as a limiting factor of the measurement detection range of a photomultiplier tube (PMT) detector. Inspection systems, circui...
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JP5290804B2 |
A photomultiplier tube including a casing having a glass substrate with a main surface made with an insulating material, dynodes having a 1st stage to an Nth stage which are arrayed to be spaced away sequentially from a first end side to...
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JP5290805B2 |
Electrons are prevented from being made incident onto an insulation part of a casing between dynodes to improve a withstand voltage. The photomultiplier tube 1 is a photomultiplier tube which is provided with substrates 20, 40 arranged s...
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JP5284635B2 |
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JP5254400B2 |
The present invention relates to a photomultiplier having a structure for making it possible to easily realize high detection accuracy and fine processing, and a method of manufacturing the same. The photomultiplier comprises an enclosur...
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JP2013530499A |
An electron multiplying structure for use in a vacuum tube using electron multiplying, the electron multiplying structure having an input face intended to be oriented in a facing relationship with an entrance window of the vacuum tube, a...
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JP5221868B2 |
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JP5221052B2 |
In this control circuit, based on a reference potential generated in a high-voltage generating circuit, a comparator outputs an over-light incidence discrimination signal to the outside of a module. It is revealed that, when an over-ligh...
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JP5215569B2 |
The configuration (501) has a single channel-channel electron multiplier (502) for reception of an incoming particle. A single body multichannel-channel electron multiplier (503) is arranged behind the single channel multiplier (502) for...
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JP2013524444A |
A method of operating a particle detector is introduced, the method comprising the steps of receiving incident particles that represent at least one input signal in the particle detector, emitting electrons from a first dynode in respons...
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JP2013522821A |
A photo cathode for use in a vacuum tube including a cathode layer, having an entrance face capable of absorbing photons impinging on the cathode layer, and an exit face for releasing electrons upon impinging of the photons, and an elect...
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JP5210940B2 |
A mass spectrometer that allows easy replacement of an MCP (microchannel plate) and is enabled to secure orthogonality between an incident surface of the MCP and an ion track at high accuracy is provided. A flight tube 2 where ions fly i...
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JP5175388B2 |
The present disclosure provides an ion detector for improving the effect of electric field for pulling in an ion to be detected to a first-stage electrode of a secondary electron multiplier (SEM), and improving the effect of a stray ligh...
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JP5159393B2 |
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JP5152950B2 |
To provide a microchannel plate having excellent characteristics capable of attaining both high luminance and high resolution at the same time, a gas proportional counter tube and an imaging device. An inspection device of imaging type i...
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JP5154717B2 |
The present invention relates to an electron multiplier and others to effectively suppress luminescence noise, even in compact size, in which each of multistage dynodes has a plurality of columns each having a peripheral surface separate...
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JP5135114B2 |
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JP5065171B2 |
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JP5049167B2 |
In an MCP assembly 10 having one or a plurality of MCPs 5, 6 sandwiched with an input-side electrode 4 and an output-side electrode 7, there provided at the surface facing the MCP 5, 6 of at least either (preferably, both) of the input-s...
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JP5049174B2 |
In a charged particle detecting apparatus 100 for which an MCP is sandwiched with an IN electrode 1 and an OUT electrode and an anode electrode and a rear cover are installed therebehind, the component members in the rear of the IN elect...
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JP5051143B2 |
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JP5000137B2 |
The present invention relates to a photomultiplier having a structure for making it possible to easily realize high detection accuracy and fine processing, and a method of manufacturing the same. The photomultiplier comprises an enclosur...
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JP4996028B2 |
An improved microchannel plate (24) is disclosed. The microchannel plate has an input side (24a) and an output side (24b). A coating (32) is applied to the input side (24a) to increase secondary electron production and to prevent ions fr...
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JP4976277B2 |
Backthinning in an area selective manner is applied to imaging sensors 12 for use in electron bombarded devices. A further arrangement results in an array of collimators 51 aligned with pixels 42 or groups of pixels providing improved im...
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JP2012515412A |
The invention relates to a device for measuring and processing an input signal (To) of at least two decades, comprising: an electron multiplier (4) that has an exponential gain on the basis of the power supply voltage (Vm) thereof and wh...
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JP4947837B2 |
A night vision device (10) with an image intensifier tube (14) includes an improved microchannel plate (22) which has an extraordinarily low indigenous population of gas molecules. Because of this low population of gas molecules, positiv...
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JP4949260B2 |
The present invention relates to a photomultiplier having a structure that enables to perform high gain and satisfy higher required characteristics. In the photomultiplier, an electron-multiplying unit accommodated in a sealed container ...
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JP4931793B2 |
A focal plane detector assembly of a mass spectrometer includes an ion detector configured to detect ions crossing a focal plane of the spectrometer and an electrically conductive mesh lying in a plane parallel to the focal plane, positi...
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JP4926392B2 |
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JP4921248B2 |
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JP4917280B2 |
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JP4891828B2 |
An extension line of a tube axis of a photomultiplier tube is shifted from the center of gravity position of a front surface of a housing, which allows a space to be formed at an opposite side in the housing. A signal processing board is...
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JP4863931B2 |
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JP4849521B2 |
A vacuum vessel is configured by hermetically joining a faceplate (13) to one end of a side tube (15) and a stem (29) to the other end via a tubular member (31). A photocathode (14), a focusing electrode (17), dynodes (Dyl-Dy12), a drawi...
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