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| Number | Title | Issue Date |
| 7667400 | Back-illuminated Si photomultipliers: structure and fabrication methods Back-illuminated silicon photomultipliers having a substrate of a first conductivity type having front and back sides, a matrix of regions of a second conductivity type in the substrate, a matrix of regions of the first conductivity type under the matrix of regions ... | 02/23/2010 |
| 7667399 | Large area hybrid photomultiplier tube A large area hybrid photomultiplier tube that includes a photocathode for emitting photoelectrons in correspondence with incident light, a semiconductor device having an electron incident surface for receiving photoelectrons from the photocathode, and a cone shaped ... | 02/23/2010 |
| 7602122 | Photomultiplier The present invention relates to a photomultiplier of a fine structure that realizes a high multiplier efficiency. The photomultiplier comprises an outer casing whose interior is maintained at vacuum, and, in the outer case, a photocathode that emits photoelectrons ... | 10/13/2009 |
| 7417235 | Particle detector for secondary ions and direct and or indirect secondary electrons A multi-purpose efficient charge particle detector that by switching bias voltages measures either secondary ions, or secondary electrons (SE) from a sample, or secondary electrons that originate from back scattered electrons (SE3), is described. The basic version o... | 08/26/2008 |
| 7342216 | Photomultiplier system and a microscope A photomultiplier system includes a detector tube, a power supply unit, and a thermal isolation element. The power supply unit provides an accelerating voltage for operating the detector tube. The detector tube and the power supply unit are disposed on different sid... | 03/11/2008 |
| 7332700 | Photomultiplier tube with dynode modulation for photon-counting In a photomultiplier tube (PMT) device having a plurality of dynodes provided between a cathode and an anode, a cancellation circuit provides two different modulation signals to the PMT to cancel the effects of the modulation signals upon the output of the PMT. For ... | 02/19/2008 |
| 7317283 | Photomultiplier The present invention relates to a photomultiplier having a structure for performing a high gain and achieving a higher productivity in a state keeping or improving an excellent high-speed response. In the photomultiplier, an electron-multiplying unit accommodated i... | 01/08/2008 |
| 7285783 | Multi-anode type photomultiplier tube and radiation detector A side tube includes a tube head, a funnel-shaped connection neck, and a tube main body, which are arranged along a tube axis and which are integrated together into the side tube. The size of a cross section of the tube head perpendicular to the tube axis is larger ... | 10/23/2007 |
| 7276704 | Photomultiplier tube, photomultiplier tube unit, and radiation detector A photomultiplier tube, a photomultiplier tube unit, and a performance-improved radiation detector for increasing a fixing area of a side tube in a faceplate while increasing an effective sensitive area of the faceplate. In the photomultiplier tube, a side face (... | 10/02/2007 |
| 7238928 | Photomultiplier with particular stem/pin structure The edges of portions of a base member that are joined to stem pins are arranged as bottom surfaces of recesses formed in the stem so that the stem pins are joined to the base member at gradual angles and so that even when a bending force acts on the stem pins, the ... | 07/03/2007 |
| 7189956 | Photomultiplier and radiation detector In a photomultiplier, a ring-like side tube is not interposed between a side tube and a stem in the radial direction, and the side tube is joined to the ring-like side tube in a state of being directly capped onto a portion of the stem that protrudes out from an ope... | 03/13/2007 |
| 7186986 | Radiation detector with converters A high efficiency radiation detector employs longitudinally extending converter elements receiving longitudinally propagating radiation to produce high-energetic electrons received by detector structures in interstitial spaces. The secondary electron generation in t... | 03/06/2007 |
| 7180977 | Scanning-based detection of ionizing radiaion for tomosynthesis A scanning-based apparatus for obtaining tomosynthesis data of an object performing a periodic movement comprises a radiation source emitting radiation around an axis of symmetry; a radiation detector comprising line detectors, each being directed towards the diverg... | 02/20/2007 |
| 7148461 | Photomultiplier tube with enchanced hermiticity A metal side tube (2), a glass faceplate (3), and a stem plate (4) 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 po... | 12/12/2006 |
| 7145134 | Multi-anode detector with increased dynamic range for time-of-flight mass spectrometers with counting data acquisitions A detection scheme for time-of-flight mass spectrometers is described that extends the dynamic range of spectrometers that use counting techniques while avoiding the problems of crosstalk. It is well known that a multiple anode detector capable of detecting differen... | 12/05/2006 |
| 7141926 | Photomultiplier tube with improved light collection Photomultiplier tubes with improved collection of incident radiation, especially from the periphery of the front face of the tube, and that more efficiently couple the collected radiation to the photocathode, and moreover have higher packing densities when assembled... | 11/28/2006 |
| 7135670 | Photomultiplier and radiation detector Onto a base member, through which stem pins are passed and holding members are to be joined to the respective surfaces thereof, the stem pins and the holding members are joined by fusion by melting of the base member to arrange a stem with at least three or more lay... | 11/14/2006 |
| 7132639 | Photomultiplier and radiation detector A holding member or a base member, through which stem pins are passed and one surface of which is held by the holding member, is joined to the stem pins and the holding member by fusion by the melting of the base member. Upon melting, a volume of the base member is ... | 11/07/2006 |
| 7109467 | Method and system for spread spectrum gating A gating module for gating an image intensifier tube. The gating module includes a frequency generator generating a base signal having a base frequency. A modulator spread-spectrum modulates the base frequency of the base signal to generate a modulated signal. A gat... | 09/19/2006 |
| 7102284 | Photomultiplier 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 light reflected from the first... | 09/05/2006 |
| 7092013 | InGaAs image intensifier camera An InGaAs Image Intensifier (“I2”) Camera (C) detects and forms an image (310) to be viewed. An InGaAs photocathode Image Intensifier (312) is used to pass an amplified signal (316) from a screen (320). The InGaAs image intensificatio... | 08/15/2006 |
| 7071604 | Electron source An electron gun (10) includes an electron multiplier (22, 22′, 22″, 110) has a receiving end (50, 50′, 50″) for receiving primary electrons and an output end (54, 54′, 54″) that emits secondary electrons responsive to primary ... | 07/04/2006 |
| 7064485 | Photomultiplier tube having focusing electrodes with apertures and screens A glass container has a faceplate, a side tube, and a bottom. A photocathode is formed on the inner side of the faceplate. The glass container includes a first dynode, a second dynode, a screen focusing electrode, a dynode array, and an anode. The screen focusing el... | 06/20/2006 |
| 7049747 | Fully-integrated in-plane micro-photomultiplier An integrated micro-photomultiplier is disclosed which employs sub-micron-wide channels for electron amplification. These channels are created with standard lithographic and planar-fabrication techniques, and sealed with a vacuum-deposition process. A photocathode, ... | 05/23/2006 |
| 7026177 | Electron multiplier with enhanced ion conversion A replaceable, electronically-isolated, MCP-based spectrometer detector cartridge with enhanced sensitivity is disclosed. A coating on the MCP that enhances the secondary electron emissivity characteristics of the MCP is selected from aluminum oxide (Al2O... | 04/11/2006 |
| 7023134 | Dynode producing method and structure 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 openin... | 04/04/2006 |
| 7008594 | Luminescent reaction measurement device Light resulting from chemiluminescence inside a reaction chamber 4 is transmitted through a light transmitting window 3, a large part of the light is made incident on a photoelectric surface 71 of a photomultiplier tube 2 to generate phot... | 03/07/2006 |
| 7005625 | Low power stabilized voltage divider network A voltage divider network in combination with a voltage multiplier circuit voltage biases the electrodes of a photomultiplier tubes or related device. The circuit exploits the several voltage levels produced at successive stages of a voltage multiplier circuit in or... | 02/28/2006 |
| 7002132 | Photocathode, electron tube, and method of assembling photocathode The invention relates to a photocathode and the like having such structure for holding a photocathode plate on a light transparent member with good reliability and workability. In the photocathode, claw portions of a holding member fixed to the light transparent mem... | 02/21/2006 |
| 6992441 | MBE grown alkali antimonide photocathodes A photocathode manufacturing intermediary article (24) includes a substrate layer (26), and an active layer (20) that is carried by the substrate layer (26). The active layer (20) includes photoemissive alkali antimonide material t... | 01/31/2006 |
| 6989632 | Photomultiplier A photomultiplier has a dynode cascade arranged radially rather than axially. Effective dynode area thereby can increase through the cascade, leading to improved linearity of response, and the axial length of the device can be reduced. The dynodes are sections of a ... | 01/24/2006 |
| 6958474 | Detector for a bipolar time-of-flight mass spectrometer A replaceable, electronically-isolated, MCP-based spectrometer detector cartridge with enhanced sensitivity is disclosed. A mass detector is electro-optically isolated from a charge collector with an electron multiplier for converting a charged particle into a multi... | 10/25/2005 |
| 6949737 | Device for collecting ions in a mass spectrometer The invention relates to a device for collecting ions, in particular in an isotope mass spectrometer. At least one secondary electron multiplier (SEM) is provided, this being constructed in the manner of a card, namely box-like and with a thickness which is low in c... | 09/27/2005 |
| 6946792 | Photomultiplier A photomultiplier excellent in vibration resistance and improved in pulse linearity characteristic and time-response. The fourth, and sixth to ninth dynodes (Dy4, Dy6 to Dy9) have a similar shape to that of the second dynode (Dy2). The th... | 09/20/2005 |
| 6946641 | Photomultiplier tube 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 (... | 09/20/2005 |
| 6935010 | Method of fabricating a micromachined tube for fluid flow Micromachine fluidic apparatus incorporates a free-standing tube section and electrodes to actuate or control the movement of the tube section, or to sense the movement of the tube section, or both. Electronic circuitry, which may be disposed on the same substrate a... | 08/30/2005 |
| 6927538 | Photomultiplier tube A photomultiplier that prevents rattling between the dynodes and the base plates, the parts being fixed securely to achieve excellent vibration resistance. The dynode of the second stage (Dy2) includes a curved surface (Dy2A) having an arcuate cross-se... | 08/09/2005 |
| 6852979 | Photomultiplier tube, photomultiplier tube unit, radiation detector A photomultiplier tube enhanced in simplicity and flexibility of mounting, a photomultiplier tube unit enhanced in photomultiplier tube assembling efficiency when unitized, and a radiation detector enhanced in assembling efficiency for a plurality of photomultiplier... | 02/08/2005 |
| 6828729 | Bipolar time-of-flight detector, cartridge and detection method A replaceable, electronically-isolated, MCP-based spectrometer detector cartridge with enhanced sensitivity is disclosed. A coating on the MCP that enhances the secondary electron emissivity characteristics of the MCP is selected from aluminum oxide (Al2O... | 12/07/2004 |
| 6791269 | Active photomultiplier tube base A Photo-Multiplier Tube (PMT) base for supplying long-term stable power, gain control and output amplification to a PMT. The present PMT base integrates the circuitry required for the dynode stages of the PMT with an amplifying circuit that amplifies the PMT output ... | 09/14/2004 |
