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photomultiplier

   Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson 0.04 sec.
photomultiplier: see photoelectric cell photoelectric cell or photocell, device whose electrical characteristics (e.g., current, voltage, or resistance) vary when light is incident upon it.
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Images were obtained with a ScanArray Lite confocal laser scanning system (Perkin-Elmer, Torrance, CA, USA) at a laser power of 60 to 80 and a photomultiplier tube gain of 60 to 80.
Yet the detectors, known as photomultiplier tubes, tend to be large, fragile, and power-hungry.
Because the flow cytometric analysis is done at a preset photomultiplier (PMT) setting, there is the possibility that when a given transcript is relatively abundant (high copy number), the signal values could reach saturation, whereas the signal values derived from the hybridization of uncommon transcripts (low copy number) to their specific microspheres could be relatively low.
 
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