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Photonics Buyers' Guide
Apex 785 Raman Spectrometer
IR & UV Detectors
Moxtek Improves UV-Vis-NIR Spectrophotometer Performance
Measuring Lens Centering, Air Spacing & Center Thickness
ImageMaster Compact MTF Test Station
Nanopositioning Stages and Piezo Mechanisms for Biotech
lite Portable Spectral Flux Analysis
Miniature Hexapod 6-Axis Precision Positioner for Ambient and Vacuum
A photomultiplier tube is a tube consisting of an evacuated envelope with a photocathode that emits electrons when exposed to light. These electrons are accelerated by a positive electrostatic field and fall upon a metal surface where they emit secondary electrons that are again accelerated to generate more electrons at the next metal surface, and so on. The whole arrangement thus acts as a combination of a simple photocell with a high-gain amplifier in a self-contained unit.
Hamamatsu Corporation, Sub. of Hamamatsu Photonics K.K. - Bridgewater, NJ
Importer and distributor of photonic components and subsystems for use in instrumentation. Products include photomultiplier tubes, solid-state photodetectors, IR detectors, image sensors, scientific-grade CCD cameras, light sources and x-ray solutions. In Europe, please call freephone 00 800 800...
Meadowlark Optics, Inc. - Frederick, CO
Manufacturer of standard and custom polarization control components and systems including polarizers, retarders, liquid crystal devices, polarimeters, SLMs and tunable optical filters. Customer applications include aerospace, defense, medical imaging and analysis, data storage, polarimetry,...
ADIT Electron Tubes, Sub. of Ludlum Measurements Inc. - Sweetwater, TX
Andrews Glass Co., Inc. - Vineland, NJ
Baspik Ltd. - Vladikavkaz, Russia
ET Enterprises Ltd., Sub. of Ludlum Measurements Inc. - Uxbridge, England
National Research Institute - Electron - St. Petersburg, Russia
Promis Electro-Optics BV - Wijchen, Netherlands
Rexon Components, Inc. - Beachwood, OH
Second Source - Ontario, CA
photomultiplier tube (PMT)
A tube consisting of an evacuated envelope with a photocathode that emits electrons when exposed to light. These electrons are accelerated by a positive electrostatic field and fall upon a metal surface where they emit secondary electrons that are...
An electrode used to release photoelectric emission when irradiated, making it then the irradiated negative electrode of a phototube.
An electron tube having a photocathode for the emission of a photoelectric current.
detectors of light
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