Ionization Potential Set Up, 10 Kg | Laboratory Instrument For Electron Collision And Excitation Measurement

We are highly preferred and major manufacturer, supplier and exporter of Ionization Potential Set Up in Roorkee, Uttarakhand, India. The electrons in the atomshave discrete stationary states.Franck and Hertz in 1914 described the first observation of quantized excitation from one quantized state to another one year after N. Bohr published his theory of hydrogen atom. His method depends on detecting the on-set of inelastic collisions between electrons and atoms of the gas under study. The experimental tube in this measurement is essentially a triode filled with the vapour of the experimental substance. The electrons emitted by the heated filament of the tube are accelerated by the positive potential VGK between the cathode and the grid. The grid is a wire mesh which allows the electrons to pass through. The anode A is maintained at a fixed potential VGA slightly negative with respect to the grid. In the experiment the electron current is measured as a function of the voltage VGK. As VGK increases, the energy of the electrons increases, and more and more electrons reach the anode. The anode current increases. The collisions between the electrons and the atoms are elastic. As VGK further increases, the energy of the electrons reaches the threshold for the excitation of the atomic electrons from the ground state to the first excited state, and the collisions between the electrons and the atoms become inelastic.