Status Report 2008, NA63 ELECTROMAGNETIC PROCESSES IN STRONG CRYSTALLINE FIELDS

The results obtained in the framework of the NA63 experiment at CERN are reported. Trident production in the strong crystalline fields of single Ge crystals are enhanced by about a factor 3 compared to a Ge amorphous material. Formation lengths of several microns for the production of GeV photons from ultrarelativistic electrons is directly observed in structured targets, and a new technology to generate oscillating planes in diamond, suitable for a crystalline undulator is presented. The plans for 2008 include a measurement of resonance phenomena in structured targets and a possible change in restricted energy loss in thin solid state detectors, for sufficiently high values of the Lorentz factor.