Finite Element Analysis of the Distortion of a Crystal Monochromator from Synchrotron Radiation Thermal Loading

W. R. Edwards; E. H. Hoyer; A. C. Thompson

doi:10.1117/12.950939

5 May 1986 Finite Element Analysis of the Distortion of a Crystal Monochromator from Synchrotron Radiation Thermal Loading

W. R. Edwards, E. H. Hoyer, A. C. Thompson

Author Affiliations +

Proceedings Volume 0582, Insertion Devices for Synchrotron Sources; (1986) https://doi.org/10.1117/12.950939
Event: International Conference on Insertion Devices for Synchrotron Sources, 1985, Stanford, United States

Abstract

The first crystal of the Brown-Hower x-ray monochromator of the LBL-EXXON 54 pole wiggler beamline at Stanford Synchrotron Radiation Laboratory (SSRL) is subjected to intense synchrotron radiation. To provide an accurate thermal/structural analysis of the existing monochromator design, a finite element analysis (FEA) was performed. A very high and extremely localized heat flux is incident on the Si (220) crystal. The crystal, which possesses pronouncedly temperature-dependent orthotropic properties, in combination with the localized heat load, make the analysis ideally suited for finite element techniques. Characterization of the incident synchrotron radiation is discussed, followed by a review of the techniques employed in modeling the monochromator and its thermal/structural boundary conditions. The results of the finite element analysis, three-dimensional temperature distributions, surface displacements and slopes, and stresses, in the area of interest, are presented. Lastly, the effects these results have on monochromator output flux and resolution are examined.

Citation Download Citation

W. R. Edwards, E. H. Hoyer, and A. C. Thompson "Finite Element Analysis of the Distortion of a Crystal Monochromator from Synchrotron Radiation Thermal Loading", Proc. SPIE 0582, Insertion Devices for Synchrotron Sources, (5 May 1986); https://doi.org/10.1117/12.950939

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available