Abstract
IN your last issue (p. 399), in the account of the work appearing in the Comptes rendus, you state that M. de Heen “proves conclusively that the X-rays proceed from the anode and not the kathode.” May I point out (as I did at the Royal Society, in the course of the discussion on Prof. J. J. Thomson's paper, February 13), that I have proved that this is undoubtedly true for the bulb that I have been using throughout my experiments on the X-radiation. The bulb is one in which the negative electrode is concave, and the negative stream is thereby focussed to a point on the anode, which is a platinum disc placed near the centre of the bulb. By measuring the positions of different parts of a radiograph of a series of concentric zones of tinfoil placed in a measured position, I have shown that the actinic rays diverge from the anode disc.
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
PORTER, A. The Röntgen Rays. Nature 53, 413 (1896). https://doi.org/10.1038/053413b0
Issue Date:
DOI: https://doi.org/10.1038/053413b0
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.