In this report the results of optimization of focusing lattices of synchrot
ron radiation sources with the purpose to produce the photon beams with hig
h spectral brightness are presented. The choice such as structure, field in
dex in dipole magnets, ending angles in magnets is discussed. The examples
of optimization and modeling for the Kharkov Accelerator Storage Ring proje
ct are given. (C) 2000 Published by Elsevier Science B.V. All rights reserv
ed.