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Thermo-mechanical analyses of beryllium compound refractive lens for NSLS-II beamline

  • V. Ravindranath (a1), S. Sharma (a1), O. Chubar (a1), Y. Cai (a1) and S. Coburn (a1)
  • DOI: http://dx.doi.org/10.1017/S2044820111000116
  • Published online: 12 April 2011
Abstract

In this paper we discuss the finite-element analysis (FEA) of a one-dimensional beryllium compound refractive lens (Be-CRL) that was undertaken to study the feasibility of installing the CRL in the Inelastic X-ray Scattering (IXS) beamline of National Synchrotron Light Source-II (NSLS-II) (a new state-of-the-art medium-energy third-generation storage ring). The current insertion device for this beamline is an IVU22-6m in-vacuum planar undulator delivering a total power of ~9 kW with a peak power density of ~90 kW/mrad2. Through analysis, based on calculation of spectral angular distribution of undulator radiation from IVU22, we determined that it is essential to install a 30 µm graphite filter upstream of the CRL in order to restrict the temperature rise in the CRL to 65°C for acceptable thermal strain.

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Copyright
Corresponding author
Email address for correspondence: vishy@bnl.gov
Linked references
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This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

S. Ganesh Sundara Raman & V. M. Radhakrishnan 2002 On cycling stress–strain behaviour and low cycle fatigue life. Mater. Des. 23, 249254.

R. D. Watson , D. L. Youchison , D. E. Dombrowski , R. N. Guiniatouline & I. B. Kupriynov 1997 Low cycle thermal fatigue testing of beryllium. Fusion Eng. Des. 37, 553579.

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Diamond Light Source Proceedings
  • ISSN: -
  • EISSN: 2044-8201
  • URL: /core/journals/diamond-light-source-proceedings
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