| Paper | Title | Page |
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| TUPH02 | Collimator for ESRF-EBS | 23 |
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| The function of the collimator is to localize the majority of the electron losses in the ESRF-EBS storage ring (SR). In addition, the collimator of the ESRF-EBS should absorb about 1200w of synchrotron radiation. For ESRF-EBS, the electron losses due to intra bunch scattering (Touschek scattering) will be higher than in the current ESRF SR. To control the level of radiation outside the storage ring tunnel and the activation level of the vacuum chambers, it is more efficient to localize the electron losses and block the radiations at one place rather than reinforce all of the SR tunnel shielding. The poster will show how the design has taken into account all the diverse requirements from a safety, accelerator physics, thermo-mechanical and mechanical point of view. | ||
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Poster TUPH02 [1.569 MB] | |
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH02 | |
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| THOAMA06 | A New X-Ray Beam for the ESRF Beamlines, Opto-Mechanical Global Survey | 316 |
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The new ESRF photon source EBS, introduces important changes for the beamlines. Half of them are concerned with the concept of low beta (small source size/ high divergence). This survey is an opto-mechanical review with all of the thermal/high heat-load issues on optics. This plan uses new package, OASYS aimed at making X-ray beam simulations for most optical parameters. White beam aspects are introduced, using ANSYS and COMSOL modules, leading to beam propagation FEA analysis with deformed optics. This presentation describes the optical aspects of the ESRF beamlines (high/low beta optics), and their transition towards this new source. Some key issues like IDs beam illumination; power filtering and optimization of the best part of the spectrum are detailed. Mirrors and monochromator crystals deformation will be presented, first for the day-one best conditions. As a second issue, OASYS enables to simulate the full beamline, from the IDs to the experiment, allowing simulating virtual experiments, with samples. This work is developed through many ESRF contributors; first the OASYS designers, Optics group, and then opto-mechanical experts, in association with mechanical engineering.
OASYS (OrAnge SYnchrotron Suite) is a simulation tool suite (2013)- This open source platform supports SHADOW, XOP, SRW (source)-Maintained and distributed by the ESRF-M. Sanchez Del Rio-L. Rebuffi |
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Slides THOAMA06 [7.552 MB] | |
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THOAMA06 | |
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| FROAMA07 | ESRF Double Crystal Monochromator Prototype Project | 440 |
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| Spectroscopy beamlines at the ESRF are equipped with a generic model of double crystal monochromator, originally acquired in the 1990's. After over 15 years of continuous service, their conception, although pioneering 20 years ago, can no longer meet the challenge of present and future scientific goals in terms of position and angular stability, thermal stability, cooling system, vibration, control and feedback, particularly in view of the ESRF - EBS upgrade. Considering the above issues, a feasibility phase was launched to develop a prototype DCM dedicated to future spectroscopy applications at the ESRF. Specifications : derived from expected performance of the EBS upgrade and scientific objectives - are extremely challenging, especially in terms of mechanical and thermal stability and impose the adoption of several innovative design strategies. The prototype is currently in the assembly phase and tests of the complete system are planned before the end of 2018. An overview of the DCM prototype project will be given, including specifications, major design options implemented and various validated concepts. Current project status and first test results will also be presented. | ||
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Slides FROAMA07 [24.528 MB] | |
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-FROAMA07 | |
| Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |