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

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.

Title

  • Main Title Finite Element Analysis of the Distortion of a Crystal Monochromator From Synchrotron Radiation Thermal Loading

Creator

  • Author: Edwards, W. R.
    Creator Type: Personal
  • Author: Hoyer, E. H.
    Creator Type: Personal
  • Author: Thompson, A. C.
    Creator Type: Personal

Publisher

  • Name: Lawrence Berkeley Laboratory
    Place of Publication: California
    Additional Info: Lawrence Berkeley Lab., CA (USA)

Date

  • Creation: 1985-10

Language

  • English

Description

  • Content Description: 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.
  • Physical Description: Pages: 12

Subject

  • Keyword: Numerical Solution
  • Keyword: Elements
  • Keyword: X-Ray Spectroscopy
  • STI Subject Categories: 43 Particle Accelerators
  • Keyword: Monochromators
  • Keyword: Semimetals
  • Keyword: Radiation Sources
  • Keyword: Synchrotron Radiation Sources
  • Keyword: Spectroscopy 440300* -- Miscellaneous Instruments-- (-1989)
  • Keyword: Finite Element Method
  • Keyword: Silicon
  • Keyword: Resolution
  • STI Subject Categories: 430303 -- Particle Accelerators-- Experimental Facilities & Equipment
  • STI Subject Categories: 47 Other Instrumentation

Source

  • Conference: International conference on insertion devices, Stanford, CA, USA, 28 Oct 1985

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Other: DE86004000
  • Report No.: LBL-20306
  • Report No.: CONF-8510186-5
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 6398997
  • Archival Resource Key: ark:/67531/metadc1206205

Note

  • Display Note: NTIS, PC A02/MF A01; 1.