High magnification optical imaging systems for the characterization of soft X-ray focii
We present a series of novel X-ray imaging systems designed specifically for the soft X-ray energy range, optimized for operation in ultra-high-vacuum environments and compactness. These systems achieve micrometre-level spatial resolution with high collection efficiency of visible light by using high numerical aperture optics. Comprehensive characterization of the systems' response was performed, including linearity assessments and X-ray sensitivity measurements, across X-ray photon densities ranging from 1 nJ m<sup>-2</sup> to 10<sup>-4</sup> nJ m<sup>-2</sup>. The imaging system was employed for caustic measurements to characterize the X-ray focal spot and to demonstrate its capabilities. Finally, grating interferometry was used to measure the wavefront distortion, yielding a pitch resolution as fine as 3.1 µm. These results underscore the system's potential for high-resolution soft X-ray imaging and wavefront characterization applications.
Authors
- Kirsten Schnorr (ORCID: https://orcid.org/0000-0002-5519-440X)
- Juraj Krempaský (ORCID: https://orcid.org/0000-0001-9043-511X)
- Ana-Sofia Morillo-Candas (ORCID: https://orcid.org/0000-0002-6974-1240)
- S. Tiefenbacher
- Jonas Knurr (ORCID: https://orcid.org/0000-0002-9455-0702)
- Christian Dávid (ORCID: https://orcid.org/0000-0002-2953-1265)
- Boris Sorokin (ORCID: https://orcid.org/0000-0002-4950-5654)
- Sven Augustin (ORCID: https://orcid.org/0000-0003-1283-331X)
- Christopher Arrell (ORCID: https://orcid.org/0000-0003-2932-196X)
- Antoine Sarracini (ORCID: https://orcid.org/0000-0003-2246-815X)
- Gregor Knopp
- Scott L. Stubbs
- Markus Herzog
- Peng Qi (ORCID: https://orcid.org/0000-0001-6612-9550)
- Jakub Vonka (ORCID: https://orcid.org/0000-0003-1182-6820)
- R. Follath (ORCID: https://orcid.org/0000-0002-4596-1468)
- Xinhua Xie (ORCID: https://orcid.org/0000-0002-1964-4370)
- Christoph Bostedt (ORCID: https://orcid.org/0000-0001-8169-8639)
- Joan Vila‐Comamala (ORCID: https://orcid.org/0000-0002-1543-3146)
- Csaba Lombosi
- Zhibin Sun (ORCID: https://orcid.org/0000-0001-5072-8567)
- S. Mandal (ORCID: https://orcid.org/0000-0002-3659-2031)
- Zhaoheng Guo (ORCID: https://orcid.org/0000-0003-3873-8804)
- André Al Haddad (ORCID: https://orcid.org/0000-0002-2575-8200)
- Haiyang Zhang (ORCID: https://orcid.org/0000-0002-3303-8975)
- Ningchen Yang (ORCID: https://orcid.org/0009-0003-8374-6683)
- Ulrich Wagner
- U. Flechsig
- Katherine Brupbacher
- Eloisa Manetti
- Loïc Bassement
Institutions
- Paul Scherrer Institute (CH)
- École Polytechnique Fédérale de Lausanne (CH)
Publication Details
- Journal
- Journal of Synchrotron Radiation
- Published
- 2025-09-19
- DOI
- https://doi.org/10.1107/s160057752500774x
- Citations
- 1
- Primary Topic
- Advanced X-ray Imaging Techniques
- Type
- article
- Field-Weighted Citation Impact
- 1.88