The photon asymmetry Sigma of the D(<(gamma)over bar>,p)n reaction has been
measured across the photon energy range 160-410 MeV at the Mainz Microtron
MAMI. Linearly polarized photons were obtained from coherent bremsstrahlun
g and their energies were determined with the Glasgow tagging spectrometer.
The large acceptance detector DAPHNE enabled the outgoing protons to be me
asured over the complete azimuthal range and for polar angles from 35 degre
es to 155 degrees in the c.m. system. The data are compared with existing r
esults and recent theoretical calculations.