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| Number | Title | Issue Date |
| 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 |
| 7218500 | High-voltage generator and accelerator using same In a high-voltage generator including a CW circuit (high-voltage circuit), where the CW circuit generates a high voltage through booster circuits that are provided for boosting an input voltage and connected to one another in multiple stages, a conductive shielding ... | 05/15/2007 |
| 7098434 | Method for extracting measuring signals from a multi-channel photomultipier and corresponding circuit The invention relates to a method for extracting measuring signals from a multi-channel photomultiplier, characterised by the following steps: a measuring signal which is integral for the channels of the photomultiplier is extracted at the dynode in order to record ... | 08/29/2006 |
| 6984940 | Electronic tube with simplified collector The invention relates to amplifying electron tubes operating at microwave frequencies. The electron tube comprises: a pump-out tube that allows the vacuum inside the electron tube to be created; an electron gun that emits an electron beam inside the electron tube; a... | 01/10/2006 |
| 6895096 | Microchannel plate audio amplifier A audio amplifier employs microchannel plate for multiplying input electrons to produce output electrons at a rate corresponding to an audio input signal. The MCP may have a segment input source, segmented input and output electrodes or a segmented anode for allowin... | 05/17/2005 |
| 6870308 | Electron amplifier utilizing carbon nanotubes and method of manufacturing the same An electron amplifier and a method of manufacturing the same are provided. The electron amplifier includes a substrate in which a plurality of through holes are formed, a resistive layer deposited on the sidewalls of the through holes, an electron emissive layer inc... | 03/22/2005 |
| 5348934 | Secondary emission cathode having supeconductive oxide material A cathode for a secondary emission structure comprised of a superconductive material is described. In one embodiment the cathode comprises a layer of a superconductive material such as yttrium barium cupric oxide, or rare earth substituted neodymium cupri... | 09/20/1994 |
| 5150067 | Electromagnetic pulse generator using an electron beam produced with an electron multiplier A pulse generator for producing high-energy, subnanosecond electromagnetic pulses. The generator comprises a pulsed cathode assembly (160) which includes a microchannel-plate electron multiplier (150) triggered by a low-intensity, pulsed electron beam. An... | 09/22/1992 |
| 5115667 | Circuit for processing a signal received by an electron multiplier The present invention relates to a circuit for processing a signal received by an electron multiplier. The circuit comprises an electron multiplier followed by an electron collector, a power supply for the electron multiplier, a gain-compressing amplifier... | 05/26/1992 |
| 4975656 | Enhanced secondary electron emitter The present invention discloses an enhanced secondary electron emitter cathode suitable for use in a typical crossed-field amplifiers. The emitter surfaces of the cathode are formed into protuberances or knurls. The cathode's secondary emission characteri... | 12/04/1990 |
| 4763043 | P-N junction semiconductor secondary emission cathode and tube A crossed-field amplifier has a cathode in the form of a P-N junction semiconductor which is biased to the conductive state to cause the crossed-field amplifier to amplify. The P and N regions of the semiconductor are connected to an energy source which i... | 08/09/1988 |
| 4086487 | Coplanar dynode electron multiplier A dynode assembly having a given length and a field electrode assembly having the same given length are disposed in a vacuum envelope. The dynode assembly is in a first plane parallel to and spaced from the longitudinal axis of the envelope and the field ... | 04/25/1978 |
| 3943458 | Reducing gain shifts in photomultiplier tubes A means is provided for reducing gain shifts in multiplier tubes due to varying event count rates. It includes means for limiting the number of cascaded, active dynodes of the multiplier tube to a predetermined number with the last of predetermined number... | 03/09/1976 |
