ESRF, Grenoble, France
FROAM03
ESRF, Grenoble, France
| Paper | Title | Page |
|---|---|---|
| WEPPP004 | High Heat Load Transfocator for the New ID14 ESRF Beamline | 158 |
|
||
| X ray refractive lenses (CRL) are powerful in-line optics for focusing x-rays. They offer many advantages such as compactness, a comfortable working distance, robustness, and are suitable for use in a wide range of energy. In the scope of the new nuclear resonance ID14 beamline at ESRF, a new transfocator was developed. This transfocator benefits from the previous experience of ESRF’s transfocators to withstand the high power densities (645W/mm2) and total power (405W) generated by the future CPMU18 and the high positioning tolerance required = <± 20µm within the same LCR assembly and between different assemblies. A thermal load analysis was carried out to optimize the cooling design for both 1D and 2D Beryllium lenses unit assembly. The tight alignment specifications was achieved thanks a good machining of both lenses unit mechanical assembly and reference V shaped rail. High positioning repeatability of CRLs actuator is assured by an optimized flexor and a good alignment procedure. The transfocator vessel is installed on a granite and a 4-DOF alignment table. | ||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-WEPPP004 | |
| About • | Received ※ 27 October 2023 — Revised ※ 06 November 2023 — Accepted ※ 10 November 2023 — Issued ※ 18 January 2024 | |
| Cite • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |
FROAM03 |
New Kicker Chambers for the ESRF-EBS Storage Ring | |
|
||
| During the commissioning phase of the new ESRF-EBS (Extremely Brilliant Source) machine, we noticed a weak point in one of the four kicker ceramic chambers, in the 16-bunches injection mode system. These chambers are made by glazing together four machined ceramic parts, then brazing on metal parts at the ends to make the vacuum connections. To avoid damaging the other kicker ceramic chambers, we had to limit the machine’s maximum current, in 16-bunches mode. After analysis of the first design, to ensure reliable injection and enable the machine to operate at its nominal current, we had to modify the kicker ceramic chambers to a more robust design. This new design is based on a single-piece ceramic body, in which the internal profile is respected, and then brazed metal parts at the ends to connect to the adjacent chambers. All the complexity of this design lies in the realization of the single-piece ceramic body with the omega shape reduced aperture. | ||
|
|
Slides FROAM03 [3.026 MB] | |
| Cite • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |