Sentences with word «photomultiplier»

Just submerge long strings of photomultiplier tubes into the water and watch for the Cherenkov light left behind by neutrino - generated muons.
Hundreds of photomultiplier tubes watch for the flashes of Cherenkov light at the bottom of Lake Baikal.
GHOST FINDER New results of experiments at the Daya Bay neutrino detector (walls lined with photomultiplier tubes, shown) hint at the existence of a lightweight sterile neutrino, about one - millionth the mass of an electron.
Every second, more than a thousand billion of them pass through the heart of the SNO detector — 1,000 tonnes of heavy water surrounded by 10,000 electronic eyeballs called photomultipliers.
These bits include sockets for photomultiplier tubes from the radiation detectors, and coaxial cables used for signals and timing purposes.
«This is the first large - scale implementation at RHIC using next - generation silicon photomultipliers for the detection of scintillator light emitted by plastic scintillators, which create light when charged particles pass through them,» Dunlop said.
This time is very short, of the order of a few hundred nanoseconds, thus the need for the specialized photomultiplier sensors.
India received photomultiplier tubes and Israel took possession of «streak» cameras, high - speed cameras that nuclear weapons testers use to capture images of explosions.
TOKYO — A single cracked photomultiplier tube apparently triggered the accident on 12 November that has closed Japan's Super-Kamiokande neutrino detector for at least a year.
Scientists there are turning an entire cubic kilometer of ice into a giant neutrino «telescope» by drilling thousands of holes deep into the clear ice and planting round photomultiplier tube sensors to capture light from ice - neutrino fender - benders.
Besides the advantage of needing far fewer photomultiplier tubes to detect high - energy neutrinos, Domogatsky pointed out that only a detector in the Northern Hemisphere could see neutrinos from the center of our galaxy.
So says Stuart Freedman, Lawrence Berkeley National Laboratory's spokesperson for the KamLAND neutrino experiment, whose 1879 glass photomultiplier tubes emerged from the earthquake unscathed.
The silicon photomultiplier technology may also be incorporated into a future upgrade to PHENIX, which will further expand RHIC's capabilities.
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.
A view inside the particle detectors at Daya Bay, where photomultiplier tubes measure signals from antineutrinos.
Ultraviolet radiation is detected by photographic plates and by means of the photoelectric effect in photomultiplier tubes.
Tags for this Online Resume: silicon sensors, low noise electronics, data analysis, radiation detectors, solid state photomultipliers, research and development, R&D manager, lead tech consultant, director of development, engineering project leader
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.
The detector material is surrounded by arrays of photomultiplier tubes (PMTs) to capture the light from potential WIMP interactions.
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.
Then in the early 1980s, researchers around the world built detectors using thousands of tons of water in underground tanks lined with photomultiplier tubes (PMTs).
The Shot: Pan took this digital image with an Olympus FluoView FV1000 confocal microscope using a 20x objective and a photomultiplier tube.
The project, dubbed IceCube, will sink 4,800 photomultipliers — sensors that detect light — into a billion tons of ice, reaching one mile (2.4 kilometers) below the Antarctic surface.
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.
Any positron produced would be moving very fast and emit Cherenkov light, which could be picked up by the photomultipliers.
These are picked up by the 1220 photomultipliers that line the tank.
The Japan-U.S. collaboration running the experiment hopes to resume some observation within a year using a limited number of photomultiplier tubes.
This is an end - on view of the vacuum chamber, showing ion pump, which maintains the high vacuum, to the left, and the photomultiplier tube and light collection lenses to the right.
A photomultiplier then translates this into electrical signals.
Photomultiplier tubes within the detector, shown above, detect light produced in interactions possibly caused by dark matter particles.
Markus Kuhn and colleagues at Cambridge University used a highly sensitive light sensor — a photomultiplier — to detect the diffuse light emitted by a computer monitor facing a wall.
The Super-K's detector houses 13,000 photomultipliers that help detect the smallest trace of light from neutrino interactions.
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.
The photomultipliers capture the whole sequence.
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 flash is faint and requires specialized electronic light sensors (photomultiplier tubes) that can detect the intensity of the light and its time structure.
Introduction and principles of confocal microscopy — lasers, objectives, scanning system, non-coherent light sources, electronic light detectors: photomultipliers, interference filters
In a traditional LSM the detector is a photomultiplier tube which can register the signal from only one point of light (pixel) at a time and with a typical quantum efficiency of 40 - 50 %.
Finally, the photomultipliers used to detect light in confocal microscopes are less efficient than the modern cameras used in LSFM.
a b c d e f g h i j k l m n o p q r s t u v w x y z