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.
Not exact matches
The Shot: Pan took this digital image
with an Olympus FluoView FV1000 confocal microscope using a 20x objective and a
photomultiplier tube.
You can't see it
with the naked eye, so to detect this light, we have 178 extremely sensitive one - pixel cameras, called
photomultipliers, above and below the liquid - xenon - filled detector.
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.
When a low - energy neutrino or antineutrino from a supernova collides
with a water molecule in the tank, the resulting light signal is recorded by about 100 of 13,000
photomultipliers, ultrasensitive light - detecting devices that turn a tiny flash of light into a larger recordable burst of electricity.
Soon we got back into our vehicles and headed toward the neutrino telescope, a contraption made of 11 strings of
photomultiplier tubes, each
with a large buoy at the top and a counterweight at the bottom.
The light collected by the lidar telescope is geometrically and spectrally separated (e.g.,
with optical filters and beam splitters) and detected
with photosensitive devices (
photomultipliers, abbreviated PMTs) where it is converted to electro - photon counts, the so - called «lidar signals».