Experiment: Maltese-Cross Tube, Basic equipment (230 V, 50/60 Hz)

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Thematic focus:_..

• Linear propagation of cathode rays / of electron beams
• Electrostatic charging effects
• Electron deflection by a magnetic field

Experiment description:_..

Straight-line propagation of electrons in the absence of a field can be demonstrated in a Maltese-cross tube by showing how the shadow of the electron beam coincides with the shadow due to a light beam. Any deviation from the straight-line propagation of the beam, due to a magnetic field for example, can be seen since the shadow is then caused to move.

Recommendation:_..

As introduction to electron optics the following is recommended:
item no: UE3070300S-230' / 8000662: Experiment: Maltese-Cross Tube, Supplement