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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Jan Kazimierz Danysz ： ウィキペディア英語版 Jan Kazimierz Danysz Jean Danysz (11 March 1884 – 4 November 1914) born Jan Kazimierz Danysz, was a French physicist of Polish extraction. He was an assistant of Maria Skłodowska-Curie and notable in the development of beta spectrometry. Danysz made considerable advances on the magnetic deflection techniques of Baeyer, Hahn and Meitner, placing the source (he used radium) in a capillary tube under a slit, with a photographic plate in the same horizontal plane. By this means the known number of lines (later understood to be conversion lines) superimposed on the beta energy spectrum of RaB + RaC went from 9 to 27 (later work by Robinson and Rutherford found 64; 16 from RaB and 48 from RaC).〔RaA was a placeholder for an isotope later identified as 218Po; RaB for an isotope later identified as 214Pb - see Radium series〕 He finished his doctoral thesis in 1913, and by 1914 he was considered by Rutherford as a leading researcher into beta decay,〔Jensen, Carsten (editor) ''Controversy and Consensus: Nuclear Beta Decay 1911-1934'' Chapter 2.4 Deflection experiments. p. 37〕 but he did no further work. He enlisted in the French army in 1914 and was killed in action near Cormicy.〔(Extract from ''Livre d'or de l'École de physique et de chimie'' )〕 ==Publications== J. Danysz, Le Radium 9, 1 (1912); 10, 4 (1913) Danysz, J. ''Recherches expérimentales sur les β rayons de la famille du radium'' Ann. Chim. Phys. 30 (1913) 241–320 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Jan Kazimierz Danysz」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.