Important Notice

June 4th, 2025
We are currently experiencing an issue with the cooling mechanism on the BL08W sample stage.
Due to this malfunction, measurements below room temperature are not possible right now.
However, measurements at room temperature and elevated temperatures can still be performed.

We are discussing the repair timeline with the manufacturer and will post updates on this page as new information becomes available.

Experimental Techniques

• Small angle X-ray scattering
• Wide angle X-ray scattering and diffraction
• Grazing incidence Small angle and wide angle scattering and diffraction

Overview

This instrument is designed for measuring small-angle X-ray scattering (SAXS), wide-angle X-ray diffraction (WAXD), and wide-angle X-ray scattering (WAXS). It utilizes an Anton Paar SAXSpoint5.0 small-angle X-ray scattering system as the main measurement unit, with synchrotron radiation from a wiggler as the light source. The sample and detector are placed under vacuum, ensuring low background noise. The distance between the sample and detector can be changed as needed by moving the detector. Measurement and data analysis can be performed using software provided by Anton Paar.

Please note that Ultra-Small Angle X-ray Scattering (USAXS) measurements are available at BL10U as advanced measurement.

Beam Characteristics

Energy

8.1 keV or 13.1 keV
*Please note that switching energy during beam time is not recommended.

Beam size

At 8.1 keV: Horizontal approx.150 µm, Vertical approx. 80 µm

At 13.1 keV: Horizontal approx. 130 µm, Vertical approx. 65 µm

Flux

     8.1 keV：1.0x10¹¹ cps
   13.1 keV：4.4x10¹⁰ cps

Light Source and Optics

The branchline for XRD measurement provides monochromatized X-rays. A white X-ray beam generated by a 5-pole multipole wiggler light source is monochromatized using Bragg reflection from a Si crystal and is split off-axis from the original beam. The X-ray energy can be selected by choosing either the Si111 or Si220. Focusing is performed by a bent cylindrical mirror.

Experimental Station

Hutch size

Approx. 5 m (optical axis direction)    x    2.5 m (width)    x    3.3 m (height)

Experimental Equipment

[Anton Paar SAXSpoint5.0 Small Angle Scattering(SAXS) Instrument]

  Utilizes synchrotron radiation as the X-ray source.
https://www.anton-paar.com/jp-jp/products/details/saxspoint-50/

  The following sample cells are available. Measurements are performed under vacuum, but sealed
  sample cells (with polyimide film windows) are also prepared.

 · Solid/powder sample holder capable of holding 20 samples (2 types)
 · Paste/gel sample holder capable of holding 4 samples
 · Solution sample holder capable of holding 4 samples
 · Sample holder capable of holding 5 disposable capillaries

 · All of the above allow for temperature control from -10 to 120 °C
https://www.anton-paar.com/jp-jp/products/details/heated-sampler/

As optional equipment, a GISAXS stage, GISAXS heating module, quartz flow cell, SiN cell, etc., are available.
· Automated measurement of up to 20 samples is possible.
· Two-dimensional SAXS/WAXS mapping is possible.
https://www.anton-paar.com/jp-jp/products/details/gisaxs-stage/

Detector

【Eiger2 1M (Two-dimensional Detector)】
   Hybrid pixel silicon photon counting X-ray detector
  Detection area: 79.9 mm    x    77.2 mm (W x H) (2 modules)
　Pixel size: 75 µm²

The sample-to-detector distance can be changed within the range of 55 to 1600 mm under
vacuum.
However, simultaneous SAXS/WAXS measurements are not possible.

Measurement q-range: at 8.1 keV
0.025 < q < 38 nm^-1

Measurement q-range: at 13.1 keV
0.035 < q < 57.1 nm^-1

(Wider angle measurements are possible by offsetting the detector.)

Layout

Site Plan

Sample Cells

Multi-Solid Holder 4×5

Powder/Paste Holder 4×5

Liquid Holder 2×2

Multi-Capillary Holders

Anton Paar GISAXS/GIWAXD Stage

Sample stage: 90 mm x 58 mm
Rotation stage: 30 mm diameter (or 30 mm dia.)

Measurement example