Estimate the speed of electrons with this Thomson tube.
- Study electron beams in electric and magnetic fields
Applications include studying electron beams in electric and magnetic fields and determining specific charge e/m through compensation of magnetic deflection by electrostatic deflection or ascertainment of the radius of curvature of the electrons in the magnetic field. An integrated plate capacitor allows electron beams to be deflected electrostatically and, by using Helmholtz coils, magnetically. The path taken by the electron beams is rendered visible on a fluorescent screen with a scale inclined by 10° with respect to the beam axis. The Tube Holder, Helmholtz Coils, 5 kV Power Supply, and 16 VDC, 5A Power Supply are required, and available separately.