MIRA

This instrument is focussed on cold neutrons. All parameters given here are valid during the current operation of FRM II. Please get in touch with the instrument team well in advance for all further details (length of experiment etc.).

Instrumentscheme LaDiff

MIRA is a thermal three axes spectrometer with wavelengths 2.5 Å < λ < 4 Å (1.55 Å^-1 < k < 2.5 Å^-1). Energy transfers from -4 meV < ∆E < 9 meV can be reached. The instrument’s setup is modular and allows for various different cold neutron experiments such as diffraction, spec-troscopy or reflectometry.

• Three axes setup in extreme environments (temperature, magnetic field and high pres-sure)
• Diffraction (using the elastic mode of instrument) with very low background
• Reflectometry
• 3D-Polarimetry

Polarised neutrons are optional for all experimental setups at MIRA. Using the finger detector, the instrument has a very low background of less than 0.1 cps. MIRA can reach a q-range up to 2.5 Å^-1 with a q-resolution of 0.05 Å^-1.

Horizontal B-fields up to 2.2 T and vertical B-fields up to 12 T are available. Temperatures from 50 mK to 1500 K can be applied using the standard sample environment at MLZ.