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Mass spectrometer

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Summary

Symbolic representation of Bainbridge's mass spectrometer (1933). Used to evaluate the masses of ions of the same charge.
Ejected from a collimator not shown here, the ions are first selected by their speed (v=E/B) then separated by mass. The device can also be used to separate different isotopes of the same element.

Click on

then rollover the particles to display their velocity.

Learning goals

  • To illustrate the workings of a mass spectrometer.
  • To observe the effect of  electric and magnetic forces on a charged particle.

 

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