PolyX beamline at SOLARIS—Concept and first white beam commissioning results

• Published in: Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 538; pp. 131 - 137
• Main Authors: Sowa, K.M., Wróbel, P., Kołodziej, T., Błachucki, W., Kosiorowski, F., Zając, M., Korecki, P.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-05-2023
• Subjects: Bending magnet beamline; Polycapillary optics; SOLARIS; Synchrotron radiation; X-ray microimaging; X-ray microspectroscopy; μCT; μXAS; μXRF; μXRF; μCT; Polycapillary optics; X-ray microspectroscopy; Bending magnet beamline; X-ray microimaging; SOLARIS; μXAS; Synchrotron radiation
• ISSN: 0168-583X; 1872-9584
• DOI: 10.1016/j.nimb.2023.02.033

PolyX is a compact bending magnet beamline under construction at National Synchrotron Radiation Centre SOLARIS, which will be available to users in mid-2023. The beamline is focused on X-ray microimaging and microspectroscopy in the tender/hard (4–15 keV) X-ray energy range. The name PolyX comes from polycapillary X-ray optics that will be extensively used for efficient X-ray focusing and from the possibility of using polychromatic or broadband X-rays to increase the rather low flux from the SOLARIS bending magnet in the hard X-ray energy range. Polycapillary optics will provide focal spots with sizes of 8–200 μm. Single bounce ellipsoidal capillary is expected to provide a ∼2 μm focal spot size. The main experimental techniques at PolyX will be X-ray absorption and phase-contrast imaging and microtomography, micro-X-ray fluorescence imaging and micro-X-ray absorption spectroscopy. This paper presents the concept of PolyX beamline and preliminary “white” beam commissioning results.