Kjs. Sawhney et Rv. Nandedkar, INFLUENCE OF IMPERFECTIONS AND MISALIGNMENTS OF OPTICAL-ELEMENTS ON THE PERFORMANCE OF A TGM BASED BEAMLINE ON INDUS-1, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 359(1-2), 1995, pp. 146-150
The performance of a beamline depends, in addition to other parameters
, significantly on the manufacturing imperfections of the optical elem
ents and the misalignment of the optical elements from the ideal posit
ion. The influence of these errors on a TGM based soft X-ray beamline
designed for the Indus-1 storage ring is studied. We have performed ra
y-tracing to determine the influence of various imperfections like slo
pe error and microroughness in the optical elements and misalignment f
actors like three position co-ordinates and three angular deviations f
or each optical element on the flux and resolution characteristics. Th
e results are discussed in this paper, in terms of tolerance limit one
has to put for this beamline on these parameters. The beamline hardwa
re should have sufficient high precision flexibility to keep the align
ment of the beamline within these tolerance level.