Optical Photon Production in Anthracene by Electrons with Energies between 2 and 10 000 eV

Abstract

The response of an anthracenescintillation detector to electrons with energies from 2 to 10 000 eV is reported. The detector response, instead of falling rapidly to zero at energies less than 1000 eV, approaches a constant value of 0.56 photon/incident electron at low energies. The response of the detector in this very low energy region apparently results from a new photon production mechanism which is not understood at present. Above 1000 eV, significantly better spectra are obtained than have been reported previously.