High magnification optical imaging systems for the characterization of soft X-ray focii
Year: 2025
Type: article
Abstract: 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 −2 to 10 −4 nJ m −2 . 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.
Source: Journal of Synchrotron Radiation
Authors: Andre Al Haddad, Antoine Sarracini, Kirsten Schnorr, Gregor Knopp, Juraj Krempasky, Christopher Arrell, Sven Augustin, Loïc Bassement, Katherine Brupbacher, Joan Vila-Comamala, Christian David, Uwe Flechsig, Rolf Follath, Zhaoheng Guo, Markus Herzog, Jonas Knurr, Csaba Lombosi, Eloisa Manetti, Suddhasattwa Mandal, Ana Sofia Morillo-Candas, Peng Qi, Boris V. Sorokin, Scott Stubbs, Zhibin Sun, Simon Christian Tiefenbacher, Jakub Vonka, Ulrich Hilmar Wagner, Xinhua Xie, Ningchen Yang, Hankai Zhang, Christoph Bostedt
Language: English
Subfield: Radiation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,180
OpenAlex ID: W4415058380