Alisha Vira edited In_order_to_better_observe__.tex  over 8 years ago

Commit id: bb410204bb4ff020f168e9f36b39f72c158726e7

deletions | additions      

       

In order to better observe the discrete quantized energy levels, a high voltage device is needed to amplify the function generator output by 20V. And this high voltage output will be applied to between  the filament cathode and accelerating plate  to give the electrons enough  energy. And another set of output leads would be put into a multimeter to measure the accelerating voltage. When measuring the anode output, a low noise current preamp (Stanford Research Systems Model SR570) should be connected to clean up the signal. This stabilizes the anode voltage by applying a low pass filter that allows us to filter out the unwanted frequencies.  To recap the two voltages that are being measured, there is the anode voltage which measures the electrons hitting the last plate in the tube and there is the accelerating voltage that measures the voltage applied to the system. In order to obtain more information on the quantum nature of atoms, the anode current plotted against the accelerating voltage would provide a general idea of the excited energy levels.