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April 22, 2015 04:18 pm
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/xyY8ke3A9kU/mits-new-tabletop-particle-detector-sees-individual-electrons
MIT's New Tabletop Particle Detector Sees Individual Electrons
An anonymous reader writes: Scientists at MIT have created a small, tabletop particle detector capable of identifying individual electrons within a cloud of radioactive gas. "As the radioactive krypton gas decays, it emits electrons that vibrate at a baseline frequency before petering out; this frequency spikes again whenever an electron hits an atom of radioactive gas. As an electron ping-pongs against multiple atoms in the detector, its energy appears to jump in a step-like pattern." The researchers used the detector to record the activity of 100,000 different electrons within the gas (abstract). They're hoping that with enough data about how the electrons bounce around, they'll be able to pinpoint the amount of energy released during these krypton atom decay events. Once they know how much energy is released, they can figure out the mass of a neutrino, which is also emitted during the decay.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/xyY8ke3A9kU/mits-new-tabletop-particle-detector-sees-individual-electrons
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