2012-11-152012-11-152012-11-15http://hdl.handle.net/2440/74278From the Bragg research papers compiled by John Jenkin MSS 0144. Source: Phil. Mag. 13 (1907) plate IXWilliam Henry Bragg's research apparatus for alpha particles, 1906, built by Arthur Lionel Rogers)BraggUniversity of AdelaideImage