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Three axes spectrometer (in diffraction mode for low background elastic measurements)
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.).
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.A variety of different setup options can be combined allowing for a fast and flexible realization of neutron experiments using the options available:
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.
Dr. Robert Georgii
Phone: +49 (0)89 289-14986
Phone: +49 (0)89 289-14877
Find the latest publications regarding MIRA in our publication database iMPULSE:
Heinz Maier-Leibnitz Zentrum. (2015). MIRA: Dual wavelength band instrument. Journal of large-scale research facilities, 1, A3. http://dx.doi.org/10.17815/jlsrf-1-21
The multi-purpose three-axis spectrometer (TAS) MIRA at FRM II
R. Georgii, T. Weber, G. Brandl, M. Skoulatos, M. Janoschek, S. Mühlbauer, C. Pfleiderer, P. Böni
NIMA 881, 11 February 2018, Pages 60-64
For citation please always include the DOI.