Sentences with phrase «as photomultipliers»
Krivitsky notes that rod - cell efficiency is comparable to the quantum efficiencies of state - of - the - art human - made single - photon detectors such as photomultipliers (40 per cent) and avalanche photodiodes (50 per cent); remarkably, rod cells occupy an area of only 5 by 50 micrometers and contain their own power supply.
https://www.sciencedaily.com/ Not exact matches
All of that, in turn, is surrounded by 1,879 photomultiplier tubes, which pick up flashes of light produced as antineutrinos collide with protons in the liquid - filled balloon.
The wispy particles can not be observed directly, however, so the 39 - meter - diameter, 41 - meter - high observation tank is filled with water and lined with photomultiplier tubes that can catch a distinctive glow, known as Cerenkov radiation, produced when neutrinos smash into atomic particles in the water.