Rod feed E-gun, manufacturers manual
... chamber is evacuated. A filament, held in a cathode assembly is given a high negative potential relative to the grounded crucible. The filament is heated to the point of thermionic emission by an electric current. The liberated electrons are then accelerated away from the filament by a grounded anod ...
... chamber is evacuated. A filament, held in a cathode assembly is given a high negative potential relative to the grounded crucible. The filament is heated to the point of thermionic emission by an electric current. The liberated electrons are then accelerated away from the filament by a grounded anod ...
High Voltage Power Supplies
... • Red: +10 V ... +15 V • Green: external control voltage from 0 V to +5 V for MCP image intensifier gain adjustment • Black: ground ...
... • Red: +10 V ... +15 V • Green: external control voltage from 0 V to +5 V for MCP image intensifier gain adjustment • Black: ground ...
Light Emitting Diodes (LED`s)
... How Does A LED Work? (2/2) Each time an electron recombines with a positive charge, electric potential energy is converted into electromagnetic energy. For each recombination of a negative and a positive charge, a quantum of electromagnetic energy is emitted in the form of a photon of light with a ...
... How Does A LED Work? (2/2) Each time an electron recombines with a positive charge, electric potential energy is converted into electromagnetic energy. For each recombination of a negative and a positive charge, a quantum of electromagnetic energy is emitted in the form of a photon of light with a ...
metal x-ray tube technology
... Varian Medical Systems has a wide portfolio of metal x-ray tubes that have replaced the glass x-ray tube in many applications. These tubes have advantages over the traditional glass x-ray tube technology as described in this article. Most conventional x-ray tubes are fabricated with a vacuum glass e ...
... Varian Medical Systems has a wide portfolio of metal x-ray tubes that have replaced the glass x-ray tube in many applications. These tubes have advantages over the traditional glass x-ray tube technology as described in this article. Most conventional x-ray tubes are fabricated with a vacuum glass e ...
FillFactory`s High Fill Factor N-Well Pixel® (US Patent 6,225,670
... with fixed pitch, QE and Fill Factor. A design with a high capacitance then yields a lower charge-to-voltage sensitivity compared to a design with a lower capacitance. For instance, using equally sized n+ diodes or NWELL diodes will result in different sensitivity due to a.o. the difference in capac ...
... with fixed pitch, QE and Fill Factor. A design with a high capacitance then yields a lower charge-to-voltage sensitivity compared to a design with a lower capacitance. For instance, using equally sized n+ diodes or NWELL diodes will result in different sensitivity due to a.o. the difference in capac ...
Book 5 - radartutorial.eu
... 1. Phase: Production and acceleration of an electron beam When no magnetic field exists, heating the cathode results in a uniform and direct movement of the field from the cathode to the plate (the blue path in Figure 12). The permanent magnetic field bends the electron path. If the electron flow re ...
... 1. Phase: Production and acceleration of an electron beam When no magnetic field exists, heating the cathode results in a uniform and direct movement of the field from the cathode to the plate (the blue path in Figure 12). The permanent magnetic field bends the electron path. If the electron flow re ...
Photomultiplier
Photomultiplier tubes (photomultipliers or PMTs for short), members of the class of vacuum tubes, and more specifically vacuum phototubes, are extremely sensitive detectors of light in the ultraviolet, visible, and near-infrared ranges of the electromagnetic spectrum. These detectors multiply the current produced by incident light by as much as 100 million times (i.e., 160 dB), in multiple dynode stages, enabling (for example) individual photons to be detected when the incident flux of light is very low. Unlike most vacuum tubes, they are not obsolete.The combination of high gain, low noise, high frequency response or, equivalently, ultra-fast response, and large area of collection has maintained photomultipliers an essential place in nuclear and particle physics, astronomy, medical diagnostics including blood tests, medical imaging, motion picture film scanning (telecine), radar jamming, and high-end image scanners known as drum scanners. Elements of photomultiplier technology, when integrated differently, are the basis of night vision devices.Semiconductor devices, particularly avalanche photodiodes, are alternatives to photomultipliers; however, photomultipliers are uniquely well-suited for applications requiring low-noise, high-sensitivity detection of light that is imperfectly collimated.