With a highly brilliance micro-focus X-ray beam, a high precision kappa-geometry goniometer and a large-area detector, 15A aims to determine 3D crystal structures from micro-scale single crystals and non-ambient conditions.

UNIQUE FEATURES

• Micro-size chemical crystal structural determination
• Non-ambient crystal structural characterization:

     - photo-excitation,

     - high pressure (Up to 20 GPa )

     - ultra low temperature (15 K )

• Pink beam Laue diffraction
• Sub-nanosecond time-resolved Single crystal diffraction

CORE EXPERIMENTAL TECHNIQUES

• Single crystal X-ray diffraction
• Laue diffraction
• Sub-nanosecond time-resolved structural information
• Microbeam diffraction
• Non-ambient technique

SCIENTIFIC OPPORTUNITIES

• Challenging difficult crystal
• Metastable state crystallography
• Photo-induced crystallography
• Non-ambient conditions on crystal Time-resolved dynamic structure

BEAMLINE SPECIFICATIONS

• 2 m CUT18 (Tapered  Cryogenic Undulator) source
• Energy range: 9 – 35 keV
• Coupled DMM/DCM for pink beam with flux~ 1 × 10¹⁵ s^-1  (bandwidth 3 – 5 %) or monochromatic beam with flux~ 1 × 10¹³ s^-1, energy resolution ΔE/E = 1.65 × 10^-4 at 8 keV.
• Beam size: ES0 ~ 200 (H) × 200 (V) μm², adjustable by slits
  ES1 ~ 70 (H) × 70 (V) – 2 (H) × 2 (V) μm², adjustable
• Source divergences: < 50 (H) × 25 (V) μrad²
• High precision kappa-geometry micro-diffractometer
• Beamline automation

 

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