Procedure for recording ion-cyclotron-resonance spectra and apparatus for carrying out the procedure
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United States of America Patent
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Jan 7, 1986
Grant Date -
N/A
app pub date -
Aug 28, 1984
filing date -
Aug 30, 1983
priority date (Note) -
Expired
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Abstract
In a procedure for recording ion-cyclotron resonance spectra or an apparatus for carrying out the procedure, gaseous ions of a sample substance in an ultrahigh vacuum are simultaneously exposed to a constant magnetic field B.sub.O and to a high frequency field which is perpendicular to it, with resonances being excited when the frequency of the alternating field corresponds to the rotational frequency of the ions which move on circular paths in the constant magnetic field. To produce gaseous ions of the sample substance, the latter is bombarded with additional gaseous, high-energy ions of a primary substance. The primary ions are produced in the measuring cell by means of an electron beam and excited to a high energy level by means of ion-cyclotron resonance (FIG. 2).
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