Measurement of the velocity-momentum-energy relations of relativistic electrons and determination of e/m. Energetic electrons from the beta decay of and its decay product are sorted according to momentum by a 180 degree magnetic spectrograph, passed through a velocity selector, and detected by a PIN diode detector. Plots of momentum and energy vs. velocity are compared with the theoretical relations of classical and relativistic dynamics, and the value of the ratio e/m is derived from the data.
PDF Lab Guide
![Relativistic Dynamics lab.](../../../../../NR/rdonlyres/Physics/8-13Experimental-Physics-I---II--Junior-Lab-Fall2002/A32C765F-9547-4A10-896B-C3AF87ADFE10/0/JLExp_09.jpg)
Relativistic Dynamics lab.