Abstract
OBSERVERS who use Wimshurst machines should remember that part of their difficulty in obtaining X-rays with a steady current and low vacuum may lie in a peculiarity of the machine itself, viz. that it will not work well when short-circuited. Machines with permanently charged armatures do not suffer from this defect, though certainly it does appear that a given quantity delivered in jerks is optically more effective than the same quantity delivered smoothly. But this seems to be a physiological rather than a physical fact, because I do not find it true photographically. The easiest plan to get a jerky current is to use what I have elsewhere called a B-circuit—attachments to outside of jars,—and the bulb is then, as Mr. T. C. Porter says, almost objectionably brilliant.
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LODGE, O. Production of X-Rays. Nature 55, 100 (1896). https://doi.org/10.1038/055100d0
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DOI: https://doi.org/10.1038/055100d0
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