Dynamic vacuum analysis for APS high heat flux beamline front ends using optical ray-tracing simulation methods
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.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10168939
- Report Number(s):
- ANL/CP-76700; CONF-920768-5; ON: DE92019032
- Resource Relation:
- Conference: Conference on physics and engineering of advanced detectors and collection/focusing systems,San Diego, CA (United States),19-24 Jul 1992; Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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