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6 April 2025

  • 16:2516:25, 6 April 2025 diff hist +94 Gehrcke 1906 No edit summary
  • 16:2116:21, 6 April 2025 diff hist −63 Judson 1997 Surface Ionization current
  • 16:1716:17, 6 April 2025 diff hist +13,927 N Gehrcke 1906 Created page with "<big>anode rays</big> von, E. Gehrcke and O. Beichenheim. Communication from the Physical and Technical Institute. (Presented at the meeting of October 19, 1906.) (See above p. 544.) § 1. While the cathode of Geissler tubes, as is well known, becomes the source of a special type of radiation, the cathode rays, when the gas is suitably diluted, the anode behaves completely differently; its shape and position in the discharge space generally have an extremely small..."

5 April 2025

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31 March 2025

  • 10:1710:17, 31 March 2025 diff hist +5,845 N Judson 1997 Created page with "<big>Early History of Mass Spectrometer Ionization Methods</big> Charles M. Judson University of Kansas, Lawrence, KS, 66045 ==Gas Discharge== Goldstein 1886 discovered anode rays in a gas discharge. This method was used in the early mass analysis measurements of Wien (1898), Thomson (1912), and Aston (1919). In 1921, Aston extended this method to use a heated anode and then a composite anode made of a paste of powdered carbon mixed with sample. Later in 1936 Bainbrid..."

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