sentences:  In 1930, Wang first proposed the use of a cloud chamber to study a new type of high-energy ray induced by the bombardment of beryllium with α particles.This experiment was conducted a year later by the English physicist James Chadwick, leading to the discovery a new type of particle, the neutron, for which Chadwick won the 1935 Nobel Prize in Physics.In 1941 Wang first proposed the use of beta-capture to detect the neutrino.