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Photon impact mass spectra

Quite apart from thermolysis occurring before fragmentation, the temperature of the ion source may have a marked effect on the appearance of a mass spectrum. Comparison of mass spectra obtained with hot and cooled ion-sources and of spectra obtained by photon impact or field ionization show by the increased amount of fragmentation that a molecular ion possesses a greater excess of internal energy when formed in a hot, electron-impact source. Possible origins of this excess internal energy are collision with or radiation from surfaces. Some effects of hot and cold ion sources are discussed. [Pg.172]

See other pages where Photon impact mass spectra is mentioned: [Pg.165]    [Pg.117]    [Pg.225]    [Pg.76]    [Pg.158]    [Pg.103]    [Pg.85]    [Pg.76]    [Pg.107]    [Pg.261]    [Pg.1010]    [Pg.47]    [Pg.55]    [Pg.45]    [Pg.93]    [Pg.61]    [Pg.276]   
See also in sourсe #XX -- [ Pg.76 , Pg.77 , Pg.82 , Pg.372 ]

See also in sourсe #XX -- [ Pg.76 , Pg.77 , Pg.82 , Pg.372 ]



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