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Thermal neutron diffractometer for single-crystal and fibre diffraction D19

The large structures diffractometer D19 is the monochromatic thermal neutron single crystal diffractometer of choice for determination of crystal structures with unit cells in the range of 102 to 106 Ǻ3.

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Applications

Single crystal

  • Organometallic complexes
  • Hydrogen-bonded systems
  • Changes of structure with temperature
  • Biological molecules and small proteins

Fibres

  • Hydrogen bonding in biopolymers
  • Hydration studies of biopolymers
  • Structural studies of industrial polymers

Selected examples

Neutron fibre diffraction patterns recorded from (a) selectively deuterated and (b) non-eduterated fibres of Poly (p-phenylene terephthalamide) (PPTA), known commercially as Kevlar® and Twaron®.

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