S2 B Plate PIP' B' Bainbridge's mass spectrometer, shown in the figure above, separates ions having the same velocity. The ions, after entering through slits, Si and S2, pass through a velocity selector composed of an electric field produced by the charged plates P and P', and a magnetic field B perpendicular to the electric field and the ion path. The ions that then pass undeviated through the crossed E and B fields enter into a region where a second magnetic field B' exists, where they are made to follow circular paths. A photographic plate (or a modern detector) registers their arrival. Assume r is the radius of the circular orbit, derive ratio g/m for the ions. NOTE: Express your answer in terms of the given variables. q/m

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S2
В
Plate
PIP
B'
Bainbridge's mass spectrometer, shown in the figure above, separates
ions having the same velocity. The ions, after entering through slits,
Si and S2, pass through a velocity selector composed of an electric
field produced by the charged plates P and P', and a magnetic
field B perpendicular to the electric field and the ion path. The ions
that then pass undeviated through the crossed E and B fields enter
into a region where a second magnetic field B' exists, where they are
made to follow circular paths. A photographic plate (or a modern
detector) registers their arrival. Assume r is the radius of the
circular orbit, derive ratio g/m for the ions.
NOTE: Express your answer in terms of the given variables.
q/m
Transcribed Image Text:S2 В Plate PIP B' Bainbridge's mass spectrometer, shown in the figure above, separates ions having the same velocity. The ions, after entering through slits, Si and S2, pass through a velocity selector composed of an electric field produced by the charged plates P and P', and a magnetic field B perpendicular to the electric field and the ion path. The ions that then pass undeviated through the crossed E and B fields enter into a region where a second magnetic field B' exists, where they are made to follow circular paths. A photographic plate (or a modern detector) registers their arrival. Assume r is the radius of the circular orbit, derive ratio g/m for the ions. NOTE: Express your answer in terms of the given variables. q/m
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