11 Sep 2009



Please note this is NOT an operational instrument.

​Lmx CAD drawing

This instrument is in design phase, a p​roposal .

​An innovative single crystal neutron diffractometer that will provide a high flux cold neutron solution for problems in large molecule chemical and biological structure.​​


The instrument will be a world-leading single crystal diffractometer, ideally suited to the ISIS second target station, and will access the large structures that play a crucial role at the forefront of modern molecule-based materials and molecular biology. Lmx will contribute substantially to two of the second target station's science themes, namely advanced materials and biomolecular sciences, with a significant but smaller contribution in the third area of soft condensed matter.

Lmx provides an outstanding opportunity for tackling some of the exciting and leading edge areas in chemistry and structural biology which are currently notwithin the scope of existing ISIS instrumentation and not yet well catered for at neutron facilities internationally.


  • Single crystal neutron diffraction
  • Neutron protein crystallography
  •  Fibre diffraction

Example applications

  • Biomolecular science
  • Organometallic chemistry and catalysis
  • Partially ordered systems
  • Supramolecular chemistry
  •  Zeolites and other framework materials


The Lmx design includes a tailor-made neutron moderator, an 80 m long incident beam path and novel neutron optics, allowing the diffractometer to be highly optimised to deliver a high flux of cold neutrons and to resolve low d-spacing Bragg reflections from very large unit cell crystals. A very large array of position sensitive detectors surrounding the sample will further enhance the instrument’s capabilities.

Did you know?

Neutron protein crystallography can be used to ‘see’ how enzymes catalyse biological processes such as the conversion of sugar from glucose to fructose.