Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun An electron tube with a photosensitive cathode.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A gas-filled
electron tube that has aphotosensitive cathode
Etymologies
Sorry, no etymologies found.
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Examples
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Used primarily as a detector of alpha particles, however, the multiplier phototube was not limited to alpha or beta measurements, as the authors argued.
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A fraction of the scattered light goes back into the hole, detected by a phototube on the optical dust logger.
SpaceRef Top Stories 2009
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- stereomicroscope (two oculars) - suitable for biology (top-lit, preferred range 10x to 60x) - trinocular (phototube on top) - affordable price
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- stereomicroscope (two oculars) - suitable for biology (top-lit, preferred range 10x to 60x) - trinocular (phototube on top) - affordable price
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