title: Structure of heavy ion tracks in Ag-Cl detectors.
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 0.2 micrometer 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 particles of high effective charge mean q exceeding approximately 25.  The effect of fading of the core depends on the charge state mean q 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.
authors.affiliation: University of Frankfurt, Germany.
authors.forename: E
authors.initials: E
authors.lastname: Schopper
authors.forename: B
authors.initials: B
authors.lastname: Baican
authors.forename: H G
authors.initials: HG
authors.lastname: Baumgardt
mesh_terms: D003460:Crystallization; D004601:Elementary Particles; D007091:Image Processing, Computer-Assisted; D007477:Ions; D018499:Linear Energy Transfer; D008853:Microscopy / Q000379:methods; D009678:Nuclear Energy; D009686:Nuclear Physics; D011839:Radiation, Ionizing; D011853:Radiobiology; D011874:Radiometry / Q000295:instrumentation; D018030:Silver Compounds
chemical_list: D007477:Ions; D018030:Silver Compounds; C037548:silver chloride