Dynamic vacuum analysis for APS high heat flux beamline front ends using optical ray-tracing simulation methods

Shenglan Xu; Robert W. Nielsen

doi:10.1117/12.140541

25 February 1993 Dynamic vacuum analysis for APS high heat flux beamline front ends using optical ray-tracing simulation methods

Shenglan Xu, Robert W. Nielsen

Author Affiliations +

Proceedings Volume 1739, High Heat Flux Engineering; (1993) https://doi.org/10.1117/12.140541
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

The high-power and high-flux x-ray beams produced by third generation synchrotron radiation sources such as the Advanced Photon Source (APS) can cause significantly high gas desorption rates on beamline front-end components if beam missteering occurs. The effect of this gas desorption needs to be understood for dynamic vacuum analysis. To simulate beam missteering conditions, optical ray-tracing methods have been employed. The results of the ray-tracing analysis have been entered into a system-oriented vacuum program to provide dynamic vacuum calculations for determination of pumping requirements for the beamline front-ends. The APS will provide several types of synchrotron radiation sources, for example, undulators, wigglers, and bending magnets. For the purpose of this study, the wiggler source was chosen as a `worst case' scenario due to its high photon flux, high beam power, and relatively large beam cross section.

Citation Download Citation

Shenglan Xu and Robert W. Nielsen "Dynamic vacuum analysis for APS high heat flux beamline front ends using optical ray-tracing simulation methods", Proc. SPIE 1739, High Heat Flux Engineering, (25 February 1993); https://doi.org/10.1117/12.140541

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