File:The Emission and Transmission of Rontgen Rays (1909) (14596668007).jpg

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English:

Identifier: philtrans09550808 (find matches)
Title: The Emission and Transmission of Rontgen Rays
Year: 1909 (1900s)
Authors: Kaye, G.
Subjects: Proceedings of the Royal Society of London Philosophical Transactions of the Royal Society
Publisher: Royal Society of London

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rating than the softercomponents of the radiation from iron : possibly also the question of a different distri-bution of the rays comes in. If a similar result is true for the secondary radiations—and,judging from the many points of resemblance between the primary and secondaryrays from the same metal, such an assumption would not appear to be altogetherunwarranted—then Messrs. Barkla and Sadlers results can be completely explained. It is worth noticing that Kleeman,# working with very hard incident rays (y raysfrom radium), found nickel perfectly normal in the intensity of its secondary radiation.HackettI* measured the quantity of secondary rays produced by the j3 rays fromradium, and found that nickel took up a place just below cobalt, and one justified byits accepted atomic weight. Dewar and JonesJ have recently determined thevapour density of nickel carbonyl and confirmed the value 5 8 7 obtained by Winkler(1893) and Richards and Cushman (1899) for the atomic weight of nickel.
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■02 o MASS PER UNIT AR£/\ CfSCRttV- •OSO •0 7& •fOO •125 Fig. 10. Al radiator, 20,000 volts. Absorptions by Equal Masses of Screens.—The interesting feature in the curves offigs. 7, 8, and 9 is the homogeneity manifested when radiator and screen are alike.Let us examine in turn the way in which the radiations from the metals aluminium,copper, and platinum are dealt with by screens of equal masses. In figs. 10, 11,and 12, log10 (I/I0) is plotted against the mass per unit area of each of the screens. *■ Kleeman, Phil. Mag./ p. 618, Nov., 1907.t Hackett, Nature, 75, p. 535, April, 1907.J Dewar and Jones, Proc. Roy. 8oc.,J A, 80, p. 234 (1908). EMISSION AND TRANSMISSION OF RONTGEN RAYS. 143

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Flickr tags
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  • bookid:philtrans09550808
  • bookyear:1909
  • bookdecade:1900
  • bookcentury:1900
  • bookauthor:Kaye__G_
  • booksubject:Proceedings_of_the_Royal_Society_of_London
  • booksubject:Philosophical_Transactions_of_the_Royal_Society
  • bookpublisher:Royal_Society_of_London
  • bookcontributor:
  • booksponsor:
  • bookleafnumber:19
  • bookcollection:philosophicaltransactions
  • bookcollection:additional_collections
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30 July 2014



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