File:Geiger-1910-fig1.GIF

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DescriptionGeiger-1910-fig1.GIF	English: An original illustration by Hans Geiger of the tube by which he observed the scattering of alpha particles by metal foils. A - conical tube B - bulb containing "radium emanation" (radon-222) D - narrow aperture E - metal foil K - stopcock through which the radium emanation was introduced to the bulb S - zinc sulfide screen
Date	18 April 2014, 14:29:28
Source	Hans Geiger (1910). The Scattering of the α-Particles by Matter. Proceedings of the Royal Society, vol. A83, p. 492-504.
Author	Hans Geiger

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