Geiger, Johannes Wilhelm

(Hans Geiger) (yōhän`əs vĭl`hĕlm gī`gər), 1882–1945, German physicist. Geiger received a doctorate in physics at Erlangen in 1906, then went to Manchester, where he assisted British chemist Ernest RutherfordRutherford, Ernest Rutherford, 1st Baron,
1871–1937, British physicist, b. New Zealand. Rutherford left New Zealand in 1895, having earned three degrees from the Univ.
..... Click the link for more information. . They devised an alpha-particle counter that permitted great strides in research on radioactivity. In 1912, Geiger returned to Germany, directing radiation research first at the Physikalisch-Technische Reichsanstalt and later at the universities of Kiel and Tübingen and at the Technische Hochschule, Berlin. In 1928 he participated in the invention of the sensitive, portable radiation counter that bears his name (see Geiger counterGeiger counter
or Geiger-Müller (G-M) counter
, instrument for the detection and quantitative determination of ionizing radiation such as the alpha and beta rays given off by radioactive minerals and cosmic rays. It was first developed by Hans (J. W.
..... Click the link for more information. ).

单词	geiger, johannes wilhelm
释义	Geiger, Johannes Wilhelm Geiger, Johannes Wilhelm (Hans Geiger) (yōhän`əs vĭl`hĕlm gī`gər), 1882–1945, German physicist. Geiger received a doctorate in physics at Erlangen in 1906, then went to Manchester, where he assisted British chemist Ernest RutherfordRutherford, Ernest Rutherford, 1st Baron, 1871–1937, British physicist, b. New Zealand. Rutherford left New Zealand in 1895, having earned three degrees from the Univ. ..... Click the link for more information. . They devised an alpha-particle counter that permitted great strides in research on radioactivity. In 1912, Geiger returned to Germany, directing radiation research first at the Physikalisch-Technische Reichsanstalt and later at the universities of Kiel and Tübingen and at the Technische Hochschule, Berlin. In 1928 he participated in the invention of the sensitive, portable radiation counter that bears his name (see Geiger counterGeiger counter or Geiger-Müller (G-M) counter , instrument for the detection and quantitative determination of ionizing radiation such as the alpha and beta rays given off by radioactive minerals and cosmic rays. It was first developed by Hans (J. W. ..... Click the link for more information. ).
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