| Title |
Design of an Integrated Crotch Absorber for ALBA Synchrotron Light Source |
| Authors |
- M. Quispe, J. Campmany, A.A. Gevorgyan, J. Marcos
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
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| Abstract |
This paper presents the design of an Integrated Crotch Absorber for the new beamline LOREA (Low-Energy Ultra-High-Resolution Angular Photoemission for Complex Materials at ALBA). The LOREA Insertion Device (ID) consists of an Apple II undulator with a period of 125 mm. For the current ALBA dipole chamber the ID vertical polarized light hits the upper and lower walls because of the very narrow vertical aperture between the cooling channels. To solve this problem some modifications must be implemented both in the dipole chamber and in the crotch absorber located inside of the dipole. The new crotch absorber, named Integrated Crotch Absorber, must absorb a significant part of the ID vertical polarized light in order to avoid radiation impinging at the post dipole chamber. The geometry of the Integrated Crotch Absorber is a combination of the conventional crotch and the distributed absorber done at PSI for ANKA. The design has been optimized taking into account the standard thermo-mechanical design criteria as well as the reflective effects of the ID radiation from the opening towards the walls of the dipole chamber.
|
| Paper |
download WEPH24.PDF [0.552 MB / 3 pages] |
| Poster |
download WEPH24_POSTER.PDF [1.046 MB] |
| Export |
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| Conference |
MEDSI2018, Paris, France |
| Series |
Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation (10th) |
| Proceedings |
Link to full MEDSI2018 Proccedings |
| Session |
Simulation, Precision Mechanics and Beamlines |
| Date |
27-Jun-18 16:40–18:00 |
| Main Classification |
Simulation |
| Sub Classification |
FEA Methods |
| Keywords |
radiation, dipole, photon, vacuum, undulator |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editors |
Volker RW Schaa (GSI, Darmstadt, Germany); Keihan Tavakoli (SOLEIL, Gif-sur-Yvette, France); Manuel Tilmont (SOLEIL, Gif-sur-Yvette, France) |
| ISBN |
978-3-95450-207-3 |
| Published |
December 2018 |
| Copyright |
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