What is a muno and what is a scintillation? What is a muno and what is a scintillation? Solution I suppose you were to ask about Muon and not Muno. To put it simply, Muons are sub-atomic particles, and do not consitute any other known particle, that is, they are fundamental particles. Muons are similar to electrons but heavier, in fact, 207 times heavier than electrons. Muons are fundamental particles, still very unfamiliar for the fact that they are radioactive and decay with an afterlife of 1.5 millionth of a second. Muons decay into an electron and two neutrinos as per: µ ---> e+ e + µ [muon ---> electron + electron antineutrino + muon neutrino] Scintillation refers to the flashes that appear on a scintillation counter whenever a particle passes through them. Scintillation counters exist for gamma, x-ray, beta, and alpha radiation. By the amount of Scintillation energy produced, we can predict the properties of the particles..