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photomultiplier
(redirected from Photo multiplier)

   Also found in: Dictionary/thesaurus, Acronyms, Encyclopedia, Wikipedia 0.01 sec.
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.


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Both of these kinds of the scanners make use of the charge-coupled device or else the Contact Image Sensor as image sensor, while the older drum scanners make use of the photo multiplier tube as image sensor.
This image is filtered through photo multiplier tubes (PMT's) and separated into three colors; red, green and blue (RGB).
With the aid of a night vision device, these photons intensified by the photo multiplier tube enables us to see different colors of lights in a subject.
 
 
 
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