The optical and mechanical lay-out of pre- and post-monochromator optics as
well as calculated performance data of the 3m-normal incidence monochromat
ors transferred from BESSY I to BESSY II will be presented. For the design,
special emphasis was laid on high resolving power and small spot size at t
he experiment. (C) 2001 Elsevier Science B.V. All rights reserved.