76 Bainbridge's mass spectrometer, shown in Fig. 28-54, separates ions having the same velocity. The ions, af- ter entering through slits, S, and S2, pass through a velocity selector com- posed 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 Figure 28-54 Problem 76. 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. Show that, for the ions, qlm = E/rBB', where r is the radius of the circular orbit. S, Plate P IP B'
76 Bainbridge's mass spectrometer, shown in Fig. 28-54, separates ions having the same velocity. The ions, af- ter entering through slits, S, and S2, pass through a velocity selector com- posed 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 Figure 28-54 Problem 76. 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. Show that, for the ions, qlm = E/rBB', where r is the radius of the circular orbit. S, Plate P IP B'
College Physics
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ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
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Chapter30: Atomic Physics
Section: Chapter Questions
Problem 67PE: Integrated Concepts Prove that the velocity of charged particles moving along a straight path...
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