Mechanical design of the HER synchrotron light monitor primary mirror for the PEP-II B-Factory

E.F Daly,A.S Fisher,J.B Langton,N.R Kurita

doi:10.1109/pac.1997.751091

Mechanical design of the HER synchrotron light monitor primary mirror for the PEP-II B-Factory

E.F Daly, A.S Fisher + Show 2 more

https://doi.org/10.1109/pac.1997.751091

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Publication Date: May 12, 1997

Citations: 4

Affiliation: SLAC National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource

#High Energy Ring #Off-axis Operation + Show 8 more

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Abstract

This paper describes the mechanical design of the primary mirror that images the visible portion of the synchrotron radiation (SR) extracted from the High Energy Ring (HER) of the PEP-II B-Factory. During off-axis operation, the water-cooled GlidCop mirror is subjected to a heat flux in excess of 2000 W/cm/sup 2/. When on-axis imaging occurs, the heat flux due to scattered SR, resistive wall losses and Higher-Order-Mode (HOM) heating is estimated at 1 W/cm/sup 2/. The imaging surface is plated with electroless nickel to improve its optical characteristics. The design requirements for the primary mirror are listed and discussed. Calculated mechanical distortions and stresses experienced by the mirror during on-axis and off-axis operation are presented.

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