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Title: Mirror and grating surface figure requirements for grazing incidence synchrotron radiation beamlines: Power loading effects

At present, grazing incidence mirrors are used almost exclusively as the first optical element in VUV and soft x-ray synchrotron radiation beam lines. The performance of these mirrors is determined by thermal and mechanical stress-induced figure errors as well as by figure errors remaining from the grinding and polishing process. With the advent of VUV and soft x-ray undulators and wigglers has come a new set of thermal stress problems related to both the magnitude and the spatial distribution of power from these devices. In many cases the power load on the entrance slits and gratings in these beamlines is no longer negligible. The dependence of thermally-induced front-end mirror figure errors on various storage ring and insertion device parameters (especially those at the NSLS) and the effects of these figure errors on a class of soft x-ray beam lines are presented. 17 refs., 5 figs., 2 tabs.
Authors:
;
Publication Date:
OSTI Identifier:
6776373
Report Number(s):
BNL-41508; CONF-870610-27
ON: DE88015817
DOE Contract Number:
AC02-76CH00016
Resource Type:
Conference
Resource Relation:
Conference: 5. national synchrotron radiation instrumentation conference, Madison, WI, USA, 21 Jun 1987; Other Information: Portions of this document are illegible in microfiche products
Research Org:
Brookhaven National Lab., Upton, NY (USA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; MIRRORS; PERFORMANCE; BEAM BENDING MAGNETS; ERRORS; GRATINGS; OPTICAL PROPERTIES; POWER DENSITY; SOFT X RADIATION; STORAGE RINGS; STRESS ANALYSIS; SYNCHROTRON RADIATION; THERMAL STRESSES; ULTRAVIOLET RADIATION; BREMSSTRAHLUNG; ELECTRICAL EQUIPMENT; ELECTROMAGNETIC RADIATION; ELECTROMAGNETS; EQUIPMENT; IONIZING RADIATIONS; MAGNETS; PHYSICAL PROPERTIES; RADIATIONS; STRESSES; X RADIATION 430300* -- Particle Accelerators-- Auxiliaries & Components