ISSN:
1420-9136
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Summary The darkening (S) of Illford Q2 photographic plates as ion detectors in mass spectrometer has been investigated. The dependence of the darkening (S) on the ion density (n=ions/mm2) i.e.S=S(n)E for constant energy (E)=z U ranging from 4≦U≦20 Kv of the impinging40A+1-,40A+2- and40A+3-ions whenS does not exceed the value 0.15 and the second relationn=n(z U) S for darkening 0.05≦S≦0.15 constructed from the above relationS=S(n) E has been determined. The darkening was found to increase with increasing ion-density which inturn decreases with the ionenergy. For40A+1-,40A+2-, and40A+3-ion of equal energy and ion-density the darkening effect was independent of the number of the charges carried by the argon ion.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00875188
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