6533b86ffe1ef96bd12cd107
RESEARCH PRODUCT
Investigation of heavy ion produced defect structures in insulators by small angle scattering
Heinrich B. StuhrmannM. RothR. SpohrD. AlbrechtP. ArmbrusterK. Schaupertsubject
Range (particle radiation)Materials sciencePhysics and Astronomy (miscellaneous)Ion beamScatteringGeneral EngineeringGeneral ChemistryNeutron scatteringIonPhysics::Accelerator PhysicsGeneral Materials ScienceNeutronSmall-angle scatteringAtomic physicsNuclear ExperimentBeam (structure)description
Fast heavy ions produce stable defects in most dielectrica. As examples mica, Polyethylenterephtalat and Polystyrol were irradiated with Ar, Ni, Kr, Xe and U ions in an energy range from 0.5 up to 20 MeV/u. The resulting defects were investigated by neutron and x-ray small-angle scattering. The ion beam supplied by the UNILAC accelerator at GSI Darmstadt is characterized by its small emittance, the well defined mass, charge and energy of the ions and their stochastical distribution in the phase space. In scattering experiments the system of scattering centers created by these ions causes a scattered intensity distribution which strongly depends on the orientation of the sample with respect to the unscattered neutron or x-ray beam. This dependence is investigated and explained.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1985-05-01 | Applied Physics A Solids and Surfaces |