Abstract The microdosimetric lateral structure of tracks of charged nuclear particles in monocrystalline layers of AgCl-detectors has been measured by means of a videoelectronic computer-controlled image analysing system. The lateral optical density profiles, recorded along the track in sequential steps of 0.2μm show compact tracks with a density maximum around the track axis as well as “coreless” tracks with a density minimum towards the axis. This minimum is more pronounced for particle of high effective charge exceeding ∼ 25. The effect of fading of the core depends on the charge state of the particle rather than on its (high) LET. This finding points towards an increased atomic displacement by Coulomb-repulsion into the lattice of the detector of Ag+-atoms which are needed for the formation of the track. Examples of measurements and of tracks are presented.
Structure of heavy ion tracks in AgCl detectors
Advances in Space Research ; 12 , 2-3 ; 17-21
1991-01-01
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Microdosimetric measurements of heavy ion tracks
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