New tabletop detector 'sees' single electrons

Magnet-based setup may help detect the elusive mass of neutrinos

23-Apr-2015 - MIT physicists have developed a new tabletop particle detector that is able to identify single electrons in a radioactive gas.As the gas decays and gives off electrons, the detector uses a magnet to trap them in a magnetic bottle. A radio antenna then picks up very weak signals emitted by the ...