A photocathode is a surface engineered to convert light (photons) into electrons using the photoelectric effect. Photocathodes are important in accelerator...

other vacuum tubes), containing a photocathode, several dynodes, and an anode. Incident photons strike the photocathode material, which is usually a thin...

illuminate targets. Their image-intensifier tubes used an anode and an S-1 photocathode, made primarily of silver, cesium, and oxygen, and electrostatic inversion...

source enter an objective lens which focuses an image into a photocathode. The photocathode releases electrons via the photoelectric effect as the incoming...

electric field generation (DC or RF), by emission mechanism (thermionic, photocathode, cold emission, plasmas source), by focusing (pure electrostatic or with...

(PMTs): PMTs are vacuum tube-based photodetectors. They consist of a photocathode that emits electrons when illuminated, followed by a series of dynodes...

photocathodes used in solar blind photomultiplier tubes and for high brightness photoinjectors driving modern particle accelerators. The photocathode...

absorbency/scatter input window, typically aluminum, input fluorescent screen, photocathode, electron optics, output fluorescent screen and output window. These...

strikes the photocathode and on a wavelength the human eye can see. This is much like a CRT television, but instead of color guns the photocathode does the...

range. These are extremely light-sensitive vacuum tubes with a coated photocathode inside the envelope. The photo cathode contains combinations of materials...

between the photocathode and the MCP is reversed, the emitted photoelectrons are not accelerated towards the MCP but return to the photocathode. Thus, no...

In a photomultiplier tube, one or more electrons are emitted from a photocathode and accelerated towards a polished metal electrode (called a dynode)...

energy deposited by the ionizing particle. These can be directed to the photocathode of a photomultiplier tube which emits at most one electron for each arriving...

photocurrent result from electron injection by the sensitized dye. Photocathodes (p-DSCs) operate in an inverse mode compared to the conventional n-DSC...

dissector is a camera tube that creates an "electron image" of a scene from photocathode emissions (electrons) which pass through a scanning aperture to an anode...

fields operating in a vacuum to focus the electrons released from a photocathode by incoming light onto a collection of silicon diodes. It is a photon-counting...

the photocathode layer by flipping the silicon wafer during manufacturing and then thinning its reverse side so that light can strike the photocathode layer...

research, as well as material characterization. A photoinjector comprises a photocathode, electron gun (AC or DC), power supplies, driving laser system, timing...

traversed by the X-ray beam. Transmitted intensities now fall on the photocathode stimulating it to produce electrons in quantities external to the light...

This is also part of traditional television and computer screens. Photocathodes may also be built in as a part of an electron gun, using the photoelectric...

Such an arrangement is able to amplify the tiny current emitted by the photocathode, typically by a factor of one million. The electrons emitted from the...

p+/p-Si photocathode, the main product is formic acid with small amount of formaldehyde and methanol. However, for p-InP and p-CdTe photocathode, both carbon...

television sets. In a photomultiplier tube, every photon striking the photocathode initiates an avalanche of electrons that produces a detectable current...

oxygen. Photoanode Reaction (Oxygen Evolution): H2O → 2H++1 2O2+ 2e− Photocathode Reaction (Hydrogen Evolution): 2H++ 2e− → H2 These half-reactions show...

near-infrared, silicon enables much higher quantum efficiency than available PMT photocathode materials. Dynamic range can be orders of magnitude larger than a PMT...

instabilities. Ultraviolet can be detected by suitable photodiodes and photocathodes, which can be tailored to be sensitive to different parts of the UV...

principle of secondary emission, whereby a single electron emitted by the photocathode strikes a special sort of anode known as a dynode causing more electrons...

Due to its conservation, the emittance at the species source (e.g., photocathode for electrons) is the lower limit on attainable emittance. For a beam...

can be applied generally, photoanodes and photocathodes have slightly different needs. A good photocathode will have early onset of the oxygen evolution...

Infrared vision or thermal vision may refer to: Thermography, a process where a thermal camera captures and creates an image of an object by using infrared...