A five-axis parallel kinematic mirror unit for soft X-ray beamlines at MAX IV

With the introduction of the multi-bend achromats in the new fourth-generation storage rings the emittance has decreased by an order of magnitude resulting in increased brightness. However, the higher brightness comes with smaller beam sizes and narrower radiation cones. As a consequence, the requir...

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Detalles Bibliográficos
Autores principales: Agåker, Marcus, Mueller, Frieder, Norsk Jensen, Brian, Åhnberg, Karl, Sjöblom, Peter, Deiwiks, Jochen, Henniger, Hans, Pärna, Rainer, Knudsen, Jan, Thiagarajan, Balasubramanian, Såthe, Conny
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2020
Materias:
Research Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7064103/
https://www.ncbi.nlm.nih.gov/pubmed/32153265
http://dx.doi.org/10.1107/S160057751901693X
Descripción
Sumario:With the introduction of the multi-bend achromats in the new fourth-generation storage rings the emittance has decreased by an order of magnitude resulting in increased brightness. However, the higher brightness comes with smaller beam sizes and narrower radiation cones. As a consequence, the requirements on mechanical stability regarding the beamline components increases. Here an innovative five-axis parallel kinematic mirror unit for use with soft X-ray beamlines using off-axis grazing-incidence optics is presented. Using simulations and measurements from the HIPPIE beamline at the MAX IV Laboratory it is shown that it has no Eigen frequencies below 90 Hz. Its positioning accuracy is better than 25 nm linearly and 17–35 µrad angularly depending on the mirror chamber dimensions.

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