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

Published online by Cambridge University Press:  12 April 2011

V. Ravindranath*
Affiliation:
National Synchrotron Light Source II BNL, Upton, NY 11973-5000, USA
S. Sharma
Affiliation:
National Synchrotron Light Source II BNL, Upton, NY 11973-5000, USA
O. Chubar
Affiliation:
National Synchrotron Light Source II BNL, Upton, NY 11973-5000, USA
Y. Cai
Affiliation:
National Synchrotron Light Source II BNL, Upton, NY 11973-5000, USA
S. Coburn
Affiliation:
National Synchrotron Light Source II BNL, Upton, NY 11973-5000, USA
*
Email address for correspondence: vishy@bnl.gov
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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.

Type
Poster paper
Copyright
Copyright © Diamond Light Source Ltd 2011

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References

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