Morning Parallel Sessions
1. “Advanced Computational Methods for Vacuum Technology with Application to Synchrotron Radiation Light Sources”
Following the progress in the design and improvement of their performances, the new generations of light sources have come to a point where diffraction-limited x-ray beams are a reality. This evolutionary trend has required a parallel evolution of the design of their vacuum systems, and the application of cross-disciplinary discoveries in the field of materials, surface treatments, thin-films, pumping technology, and more.
This 2 ½ hour tutorial will follow the following program:
• Basics of gas dynamics: outgassing, conductance, pumping speed;
• Basics of synchrotron radiation (SR), with examples relevant to vacuum design;
• SR-induced desorption;
• Computational methods for vacuum: a review;
• Practical examples of analysis, simulation, and design of key components of light sources;
• Summary and conclusions.
2. “Optics and Mechanics of Mirror Benders”
We will explain the basic concepts of optics regarding focusing with grazing incidence reflective surfaces. The concept of aberration and figure error, and the aberrations associated to the typical geometric surfaces found in mirrors will be described with some detail. We will describe how mirror benders can approximate these geometrical figures, how to compute the required mechanical characteristics, and the optical effect of the residual errors. Finally, we will describe, and illustrate with examples, the main aspects that have to be considered in the mechanical implementation, their characterization and their operation in the beamline.
Afternoon Parallel Sessions
1. “Finite Element Analysis in Design of Synchrotron Instrumentation – Issues, Good Practices and New Horizons”
Finite Element Analysis (FEA) is a widely used design tool that is implemented in the design of synchrotron instrumentation to predict how will a particular design behave under the assumed real life conditions. Although FEA is a very popular and trusted design tool in use for several decades, it is of paramount importance to emphasize that it is only as accurate as the user’s input into the analysis and the user’s interpretation of the results.
This tutorial, in its introductory part, will cover the importance of both accurate inputs into the analysis and accurate interpretation of the results as well as the best practices in how to improve aforementioned accuracies. Second part of the tutorial will cover the nature of the phenomena that are simulated with thermal and structural simulations, with the emphasis on the seemingly paradoxical fact that thermally loaded structures frequently fail only after the load is removed. The third part will cover thermal and structural simulations with several actual examples of design optimization achieved with FEA. The tutorial will be concluded with several examples of alternative application of FEA in the design of synchrotron radiation instrumentation. In this part, examples of multi-physic analysis, vibration analysis, component weight optimization, and the analysis of the acoustic levitation supports will be presented.
2. “Accelerator Physics: An introduction”
This tutorial aims professionals working at accelerators facilities but have not been introduced to the motivations and details behind such complex machines. The underlying physical phenomena are explained and linked to typical devices in synchrotron light facilities like dipoles, quadrupoles or RF cavities. The content covers a friendly overview of the core of accelerator physics and its technologies.