Abstract
I LATELY had occasion to produce some radium radiographs of two partially overlapping pennies contained in a paper envelope which was laid directly upon the photographic plate. A print from one of the results shows that the shadow of the upper coin is blurred and diminished where the rays pass through air from the edge of this coin to the plate, but that it is sharp and of the correct size where the rays pass to the plate through the lower coin. This seems to point to the production of a considerable secondary radiation by the rays in their passage through air.
Similar content being viewed by others
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
WILBERFORCE, L. Secondary Radiation produced by Radium Rays . Nature 69, 198 (1903). https://doi.org/10.1038/069198b0
Issue Date:
DOI: https://doi.org/10.1038/069198b0
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.