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Manufacturers : Optoelectronics : Photomultiplier tubes
A photomultiplier tube (PMT) is a photosensitive device that converts light photons into a electrical current. The photomultiplier tube is in the form of a glass vacuum tube in which electrons released by radiation striking a photocathode therein are accelerated for greatly amplifying the signal obtained from small quantities of radiation. When light strikes the photocathode, electrons emitted from it are directed toward and collected by an electron multiplier. The electron multiplier consists of several secondary electron emitting dynodes, the first of which receives the electrons from the photocathode. The photocathode of the PMT is located at its distal end, with the opposite proximal end thereof having exposed thereat the ends of multiple electrical leads which extend into the evacuated tube. The photocathode of the PMT is located at its distal end, with the opposite proximal end thereof having exposed thereat the ends of multiple electrical leads which extend into the evacuated tube. The photocathode is used for converting incoming light (photons) into electrons. These photoelectrons are directed by the potential of focusing electrodes towards dynodes.


Listings on Optoelectronics : Photomultiplier tubes

  • Burle Industries Inc.
    Manufacturer and supplier of specialized electron tubes and electro-optic products, including transmission mode type photomultipliers, transmission hexagonal and square mode type photomultipliers, reflection mode type photomultipliers, dormer-window reflection mode type photomultipliers, integrated photodetection assemblies, microchannel plates based photomultipliers, electron multiplier detectors, time-of-flight detectors, microchannel plates and detectors, electron generator arrays, high voltage power supplies, power tubes, and drift tubes. USA.
    http://www.burle.com
  • Electron Tubes Limited
    Manufactures photomultpliers, light and X-ray detection systems. photomultiplier applications including moving maps and aircraft monitoring systems, stronomical observations, chromatography, clinical analysers, confocal microscopy, electron microscopy, film scanners, glass inspection, high energy physics, level gauges, lidar, liquid scintillation counting, luminometers, mass spectrometers, medical imaging, oil well logging / mwd, particle counting, particle sizing, pollution monitoring, radiation monitoring, radiometry, scintillation spectroscopy, sorting, spectrometry, steel thickness gauging, telecine, and x-ray diffractometer.
    http://www.electrontubes.com

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