Cyclotron and Synchrotron Radiation
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چکیده
Ask class: what does this mean about the total speed? Constant, of course. Ask class: how does the speed along the magnetic field change? It doesn’t, because the acceleration is all perpendicular to magnetic field. Since the total speed is constant and the speed along the field is constant, this implies circular motion around the field, combined with (possibly) a uniform drift along the field. That is, the charge moves in a helix along the field. If we write just the perpendicular component of the equation of motion, we get
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