Using refractive lenses to provide a variable spot size for Kirkpatrick–Baez mirrors

For many X-ray microprobe experiments it is desirable to be able to vary the beam size: using large beams for survey scans and a small beam for the final measurements. Beryllium refractive lenses were found to be a simple and controllable method for enlarging the focus in a Kirkpatrick–Baez-based mi...

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Detalles Bibliográficos
Autores principales: Heald, Steve M., Dufresne, Eric M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2018
Materias:
Short Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6544195/
https://www.ncbi.nlm.nih.gov/pubmed/30179192
http://dx.doi.org/10.1107/S1600577518010603
Descripción
Sumario:For many X-ray microprobe experiments it is desirable to be able to vary the beam size: using large beams for survey scans and a small beam for the final measurements. Beryllium refractive lenses were found to be a simple and controllable method for enlarging the focus in a Kirkpatrick–Baez-based microprobe. They can provide variable spot size, can be quickly inserted or removed and do not move the beam center on the sample.

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