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- Title
Measurement of Out-of-Phase Magnetic Fields in Betatrons.
- Authors
BOSLEY, W.; CRAGGS, J. D.; MCEWAN, D. H.
- Abstract
FIG. 1 gives a plot (Curve A) of the magnetic field at the orbit (19 cm. radius) of a 20-MeV. betatron for the first thirty minutes of arc of the quarter period during which the electrons are accelerated. The peak field is 3,600 gauss, reached at 90°, corresponding to 20 MeV. Fig. 1 also shows, again for Curve A, the equivalent injection voltage as a function of time; for 20-kV. injection the pulse, assumed infinitely short for simplicity, should be applied to the electron gun at some 25-26 minutes of arc, that is, about 8 microsec. after the instant of zero field. The magnetic field at injection will then be about 25 gauss.
- Publication
Nature, 1947, Vol 159, Issue 4033, p229
- ISSN
0028-0836
- Publication type
Article
- DOI
10.1038/159229a0