Ion beam figuring for X-ray mirrors: history, state-of-the-art and future prospects.
J Synchrotron Radiat
; 31(Pt 4): 655-669, 2024 Jul 01.
Article
em En
| MEDLINE
| ID: mdl-38771776
ABSTRACT
Synchrotron light sources require X-ray optics with extremely demanding accuracy for the surface profile, with less than 100â
nrad slope errors and sub-nanometre height errors. Such errors are challenging to achieve for aspheres using traditional polishing methods. However, post-polishing error correction can be performed using techniques such as ion beam figuring (IBF) to improve optics to the desired quality. This work presents a brief overview of the history of IBF, introduces some of the challenges for obtaining such demanding figure errors, and highlights the work done at several in-house IBF facilities at synchrotron light sources worldwide to obtain state-of-the-art optical quality.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article