Abstract
THE use of strong magnetic fields has been proposed as a possible way of increasing resolution in radio-autography1. It was reasoned that a sufficiently strong magnetic field would bend the path of emitted β-particles into a circle of arbitrarily small radius, thereby restricting the resulting radioautographic grains to a small zone around the source. In recent reports2,3, Harford and Hamlin, using the same argument, attempted to improve the resolution of electron microscopic radioautographs by placing the specimens in a 10-kilogauss magnetic field during exposure. They could not demonstrate such an improvement; but they attributed a considerable increase in the number of exposed grains to the effect of the field on the β-particles from tritium.
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References
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CARO, L. Proposed Use of Magnetic Fields in Electron Microscopic Radioautography. Nature 191, 1188–1189 (1961). https://doi.org/10.1038/1911188b0
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DOI: https://doi.org/10.1038/1911188b0
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