433. Problem 34.17 (RHK) Bainbridge’s mass spectrometer, shown in the figure,
separates ions having the same velocity. The ions, after entering through slits
|
Solution: Click For PDF Version Condition for velocity selection of charge ions using crossed electric and magnetic fields is that the Lorentz force be zero, i.e. As
Therefore, criteria for velocity selection in the first part of the Bainbridge’s mass spectrometer is that Ions of charge q that come out of the velocity selector with the electric and magnetic fields being E and B, respectively, will have speed These ions after emerging out from the velocity-selector move in a uniform
magnetic field
|