Energieverlust und Lichtausbeute bei axialem Channeling von α-Teilchen in Anthrazen
The energy loss and the scintillation response of channeledα-particles transmitted parallel to thec-axis of anthracene were investigated. The measured half-angleψ1/2 was compared with the critical angleψcr, which was determined by use of the lattice continuum potential. The effective electron density for single-particle excitations was determined with particle flux calculations. The energy loss was explained with plasma and single-particle excitations. Dechanneling was explained with nuclear multiple scattering. The track-effect theory was used to explain the random and channeling scintillation response. Values for the radii of the track-effect theory are given.