Thermion Emission and Beta Radiation
Students asked in the Form 5 class today – “What is the difference between thermion emission and beta radiation? Both of them emits electrons.” Oh– Yes!!! A good question indeed It is true that both processes involved ejection of stream of electrons but if you would study deeply, there is a vast difference between both of them. Electron produces from thermionic emission is just as simple as heating up metal surfaces which causes the kinetic energy in the metal to rise thus liberating the electrons. The amount of energy produced is small compared to beta radiation.