photomultiplier


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photomultiplier

[-mul′tiplī′ər]
Etymology: Gk, phos, light; L, multiplex, many folds
a device used in many radiation detection applications that converts low levels of light into electrical pulses. A bank of such tubes is used in gamma cameras to view a crystal.
References in periodicals archive ?
This light is then detected by the photomultipliers.
About 7,000 of the 11,000 photomultiplier tubes attached to the neutrino detector operated at the university's research facility in the city of Hida in Gifu Prefecture were found broken in November 2001 due to a chain reaction.
Paris, France 8/23/05 -- Photonis Holding SAS has acquired Burle Industries, a manufacturer of specialized electron tubes and electro-optic products, including photomultiplier tubes, Channeltron mass spectrometry detectors and advanced performance detectors.
Analysis of each data set is performed by integrating the pulse area of each digitized photomultiplier tube (PMT) signal and applying appropriate lower level threshold cuts on the area of the pulses.
Both models are equipped with three detectors, including a photomultiplier tube for the UV-Vis region, and InGaAs and PbS detectors for the NIR region.
A photomultiplier tube then detects the fluorescence emission with extreme sensitivity.
The authors have put together a table of the machines, listing such details as the optics, the mode of detection (charge-coupled device camera or photomultiplier tube), the platform (96-well, glass capillary, etc.
All scans were recorded at photomultiplier tube settings of 480-540, a pinhole aperture setting of 50 [micro]M, and a laser voltage setting of 20 mW.
The amounts of IgG and IgM in the sera were determined by interpolating the photomultiplier counts collected at the microbial antigen spots with the IgG and IgM internal calibration curves.
Plasma emission is studied by a monochromator and a photomultiplier tube hooked up to a computer digitizing card, where Ar I lines are identified in the wavelength range from 300 - 500 nm.
In addition, the satellite carries a device called a photomultiplier tube, which allows the camera to take advantage of ultra-low-light conditions.
Photomultiplier tubes were employed for both emission and reference detectors.