Xeuss Pro

The Xeuss Pro features state-of-the-art patented single reflection 3D multilayer optics. With an improved multilayer design and optimized geometry, these optics are engineered to significantly enhance X-ray flux for high-resolution SAXS/WAXS measurements.

Drawing on more than two decades of experience in X-ray technologies and breakthrough innovations backed by several patents, the Xeuss Pro combines high flux and high resolution with low noise technology through several advanced features :

• High brightness, long-lasting microfocus X-ray sources that provide very high flux levels previously only possible with high-power rotating anode sources.
• Patented single reflection 3D multilayer optics with a very high solid angle of collection.
• 4th generation motorized scatterless slits for precise collimation and high resolution.
• Fully in-vacuum system from optics to detector sensor.
• Hybrid pixel photon counting detector.
• Proprietary automatic cosmic background reduction to reduce the impact of ambient parasitic scattering.

These innovations and features ensure that even the most advanced experiments, such as kinetic studies or shape analysis of diluted samples, and the most challenging samples —including those with low contrast, large characteristic dimensions, or requiring accurate mesophase analysis — can be studied in a laboratory setting. The Xeuss Pro guarantees superior X-ray scattering measurements, enabling precise and comprehensive scientific investigations across a wide range of research applications.

The beamstopless data acquisition of the Xeuss Pro SAXS/WAXS/GISAXS/USAXS instrument offers numerous advantages for detailed structural analysis and dynamic studies. It provides extended access to very low-q values, allowing for the study of larger structures and assemblies, and ensures continuous acquisition across the entire detector area, resulting in High Dynamic Range data. By eliminating the beamstop, artefacts such as shadowing effects and parasitic scattering from beamstop edges or detector window are avoided, leading to noise-free scattering at low-q values.

A significant benefit is the simultaneous recording of the direct beam with the sample scattering profile, enabling accurate measurement of transmitted intensity for precise absolute intensity normalization. The direct beam profile is integrated into the data analysis process in XSACT Pro, improving result accuracy.

The beamstop-free design of the Xeuss Pro simplifies experimental alignment, increases efficiency, and supports diverse applications, including time-resolved studies, in situ measurements, and high-throughput screening, making it a versatile choice for advanced SAXS research.

Q-Xoom features a fully automated, computer-controlled detector travel system that adjusts the sample-to-detector distance and performs the necessary calibrations, providing maximum measurement flexibility for optimizing experimental resolution.

The virtual detector technology further enhances measurement capabilities by providing collection surfaces larger than 200 mm x 200 mm at any sample-to-detector distance, independent of the physical detector size, and with automatic data reconstruction from WAXS to SAXS. The large surface area detection provided by the Xeuss Pro is particularly advantageous for studying anisotropic samples and achieving high-resolution measurements of smaller length scales (larger wave vectors) at longer sample-to-detector distances.

• Microfocus sealed tube: Cu, 30W/30µm*, point focus. (* DIN EN 12543-5)
• Polychromatic Copper microfocus source for imaging a field of view of 14 mm x 14 mm.
• MetalJet D2+ source (Ga), 250 W
• Rotating anode X-ray sources (Cu and Cr/Mo/Co on demand) 1.2 / 3 kW – 70 μm
• Motorized Dual or Triple source (Microfocus sealed tube: Cu/Mo/Cr combined with MetalJet or Microfocus rotating anode)

Patented 3D single reflection multilayer optics.

• In-vacuum motorized 3-axis detectors for 2D SAXS/WAXS (Q-Xoom):
  –Eiger2 R (500K, 1M or 4M) hybrid photon counting detectors
• Optional WAXS detectors for SWAXS:
  –Motorized 3-axis Eiger2 R 500K hybrid photon counting detector

• Large vacuum chamber.
• On-axis sample viewing (parallax-free).
• Attachments for operation of sample in air.
• XL station: Dedicated air-space tailored for accommodating extra-large sample environments

• Clean Beam technology: High flux and low background beamline.
• Beamstopless measurement: SAXS acquisition continuously without any beamstop.
• Q-Xoom: Automatic change of measurement configuration over all instrument Q-range with no movement of sample measuring position and automatic calibrations.
• Virtual detector mode: Surfaces of detection > 200 mm x 200 mm

• Nanoparticles sized up to 250 nm, 500 nm, or 900 nm in diameter, depending on the Xeuss model.
• Nanoparticles size up to > 2.5 microns with optional motorized Bonse-Hart module for automatic sequential USAXS/SAXS/WAXS measurements.
• Nanoparticle sizes down to 50 nm can be measured using the AuX source on spot sizes of 150 microns and with measuring times in the range of a minute or less.
• Scattering measurements up to 2Ɵ > 70° with Q-Xoom. Qmax > 49 nm-1
• The X-ray imaging option extends the range of structural information from Å to mm, while the Dark-field and Phase-contrast imaging (DF-PCI) option reveals nanostructure differences, interfaces, and orientation.

• Standard holders (multi-samples): solids, capillaries, powders, and gels.
• Flow cells for liquids:
  — Low noise flowcell
  — Capillary flow cell
  — Automatic Sample Changer
  — BioCube measuring cell with dynamic monitoring (compatible with pipetting robot)
• Temperature stages:
  — Multi-purpose X-Ray temperature stage (-30°C to 150°C)
  — High temperature sample stage (-150°C to 350°C)
  — Extended high-temperature sample stage (ambient to 1000°C)
• Mechanical stress stages:
  — Tensile Stage (0 N to 600N).
  — Couette stage for shear SAXS.
  — Cryo-Shear Cell (-50°C to +450°C).
• Humidity stage (5% to 95% humidity at temperatures ranging from 10°C to 70°C).
• Temperature-compatible advanced GISAXS stage with incidence angle control and additional rotation for texture or in-plane scattering analysis
• Other sample stages are available upon request

Comprehensive Software Suite:

• Xplore: command and control software for intuitive data acquisition with automatic data reduction in absolute units and live data display, providing also real-time equipment monitoring and scripting capabilities from any programming language.
• XSACT Pro (X-ray Scattering Analysis and Calculation Tool) for data analysis and interpretation, including unique modules for particle shape determination through direct modeling or AI-powered classification.

• Models & Footprint: Xeuss Pro C (1 m x 3.5 m), HR (1 m x 5 m), UHR (1 m x 8 m).
• Maximum power consumption: 4.8kW (single-phase power)