  A measurement of the cross section for the production of isolated prompt
photons in pp collisions at a center-of-mass energy sqrt(s) = 7 TeV is
presented. The results are based on an integrated luminosity of 4.6 fb-1
collected with the ATLAS detector at the LHC. The cross section is measured as
a function of photon pseudorapidity and transverse energy in the kinematic
range between 100 GeV and 1000 GeV and in the regions of pseudorapidity less
than 1.37 and between 1.52 and 2.37. The results are compared to leading-order
parton-shower Monte Carlo models and next-to-leading-order perturbative QCD
calculations. Next-to-leading-order perturbative QCD calculations agree well
with the measured cross sections as a function of transverse energy and
pseudorapidity.
