Facilities

SAXS

Small angle X-ray scattering (SAXS) is a technique used to investigate the structure of particle systems in order to quantify the size distribution and shape of the particles. This method involves x-ray scattering at very low angles (0-10o in 2q) capturing the dimension in the range of 1-100 nm. X-ray scattering at wider angles can also be collected at > 10o in 2q capturing smaller dimensions of < 1nm. This corresponds to wide angle X-ray scattering (WAXS) and it probes the crystalline structure of the particle. The WAXS data carries the same information as the data collected using normal XRD analysis.

SAXS is applied to a broad range of materials, including colloids of all types of metals, cement, oil, polymers, proteins, foods and pharmateuticals, found in academic research and quality control in industry.

Contact Persons:
Note: For New User Info, please click [ here ] for more information.            

  1. Pio John S. Buenconsejo (Dr), email: pbuenconsejo@ntu.edu.sg
  2. Teddy Salim (Dr), email: TSalim@ntu.edu.sg

 

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SAXSess by Anton Paar

 This is a dedicated facility for small and wide angle X-ray scattering in transmission mode. It can accomodate different types of samples and can perform in-situ heating up to 300 oC.

 

Specifications

  • X-ray Cu-Ka radiation with line beam profile
  • Heating attachment up to 300 oC
  • Detector using an Imaging plate
  • Liquids, gel and powder samples
  • Data processing using SAXSQuant
  • Analytical softwares include GIFT, DECON, SG
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Nanoinxider by Xenocs
 
Specifications
 
  • Cu-Ka, microsource (40 mm), 30W
  • Beam diameter: 200 to 800 mm
  • Beam path in vacuum (0.1 mbar)
  • SAXS (200K) and WAXS (100K) detectors
  • Data reduction using FOXTROT
  • Stages:
    1. Multi-sample holder
    2. Low Noise Flow cell
    3. Linkam heating-cooling stage (-100 C to 350 C)
    4. Thin film GISAXS/GIWAXS