An international team of scientists has made a breakthrough in detecting neutrinos using pure water instead of the expensive liquid scintillator that was previously used. The Sudbury Neutrino Observation (SNO+) experiment, located in a mine in Sudbury, Ontario, detected subatomic particles, known as
antineutrinos, using pure water. Neutrinos and antineutrinos are tiny subatomic particles that are considered fundamental building blocks of matter and have practical applications such as monitoring nuclear reactors and detecting nuclear activities. The researchers hope that an array of large and inexpensive reactors could be built to ensure that countries are adhering to nuclear weapons treaties.conducted by an international team of scientists including Joshua Klein, the Edmund J. and Louise W.
Klein explains that a reactor in a foreign country could therefore be monitored to see if that country is switching from a power-generating reactor to one that is making weapons-grade material. Making the assessment with water alone means an array of large but inexpensive reactors could be built to ensure that a country is adhering to its commitments in a nuclear weapons treaty, for example; it is a handle on ensuring nuclear nonproliferation.
“With our instrumentation group here, we designed and built all the data acquisition electronics and developed the detector ‘trigger’ system, which is what allowed SNO+ to have an energy threshold low enough to detect the reactor antineutrinos.”
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