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 Å³.
It is also unique for fibre diffraction studies of biological and industrial fibres.

Single crystal

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

Fibres

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

Polycrystals

• Texture Alpine rocks and magnetic samples