Effects of external magnetic fields on t
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Diktys Stratakis; Juan C. Gallardo; Robert B. Palmer
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Article
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2010
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Elsevier Science
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English
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Field emission in an rf cavity in the presence of external magnetic fields is examined. We show that emitted electrons from a sharp protrusion are focused by the magnetic field into small spots at another location in the cavity where they heat its surface. Scaling laws are established for the beam's