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Reflection of an Electron Beam from High‐Frequency Fields

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2 Author(s)
Hall, R.B. ; Department of Physics, Department of Electrical Engineering, and Research Laboratory of Electronics, Massachuettts Institute of Technology, Cambridge, Massachusetts ; Brown, Sanborn C.

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Experimental verification of time‐average forces due to an rf field acting on charged particles is obtained by measuring the transmission of an electron beam through the high‐frequency fields of a cavity. By adjusting the external dc magnetic field so that cyclotron resonance is approached, it is possible to reflect high‐energy beams; that is, 66 w of microwave power completely reflected a 24‐v beam. Agreement between experiment and theory was close.

Published in:

Journal of Applied Physics  (Volume:32 ,  Issue: 10 )