A team of scientists has devised a new technique to detect antineutrinos from a distance using little more than pure water.
In the Sudbury Neutrino Observation experiment, an international group of scientists - including Joshua Klein, Edmund J., and Louise W. Kahn - working together in a mine in Sudbury, Ontario, found antineutrinos using pure water.This is a groundbreaking achievement, as prior experiments have used a liquid scintillator, a costly medium due to the large amounts needed for detecting antineutrinos.are tiny subatomic particles and the most abundant particles in the universe.
Also, they can be used in the real world to watch over nuclear reactors and possibly learn about secret nuclear activities.are produced by high-energy reactions like nuclear reactions in stars, antineutrinos are usually produced artificially by nuclear reactors. By measuring antineutrinos from reactors, scientists can tell if a reactor is on or off and maybe even what kind of nuclear fuel it is burning.
This method could help monitor a reactor in a foreign country and determine if the country is switching from a power-generating reactor to one making weapons-grade material. However, reactor antineutrinos are low in energy, making it difficult to detect them. The detector must be clean from any trace amounts of radioactivity and have a low enough threshold to detect the events. Additionally, the reactor must contain at least 1,000 tons of water to monitor a reactor as far away as 149.13 miles .Klein says his former students Tanner Kaptanglu and Logan Lebanowski led the way.
This breakthrough in detecting antineutrinos with just water could lead to large and inexpensive detectors, ensuring a country is adhering to its commitments in a nuclear weapons treaty and providing a handle on ensuring nuclear nonproliferation. This discovery also opens new ways to study and use these elusive particles in the real world."The SNO+ Collaboration reports the first evidence of reactor antineutrinos in a Cherenkov detector.
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