Neutron Spin Echo Spectrometer
NSE | BL-15 | SNS
For a comprehensive overview of the SNS-NSE instrument and its scientific applications, please consult the review article provided in the first link of the reference documents. Please contact the instrument staff for additional guidance.
Reference Documents:
- Overview of science cases: "15 years of spin-echo spectroscopy at SNS-NSE: Looking back and looking forward", iScience 28, 113017 (2025).
- Reduction algorithms: "Efficient data extraction from neutron time-of-flight spin-echo raw data", Journal of Applied Crystallography, 52, 1022-1034 (2019).
- Detailed description of the spectrometer: "The spin-echo spectrometer at the Spallation Neutron Source, SNS", Nuclear Instruments and Methods in Physics Research Section A, 696, 85-99 (2012).
Main Features
NSE is of the original generic IN11 kind, which is the technique with the largest potential to extend the resolution beyond current limits. The instrument possesses a number of unique features:
- Ultrahigh resolution: τ_max ≤ 350 ns (Δħω = 2neV)
- Huge dynamical range extending up to 1:10^6
- Field compensation and magnetic shielding for high magnetic stability
- Highest Q resolution ΔQ/Q = 1%
1 = neutron source; 2 = choppers-bender-polarizer-secondary shutter system; 3 = beam transport guides; 4 = pi/2 flipper for first 90° spin-turn; 5 = first precession zone; 6 = pi flipper for 180° spin-rotation; 7 = sample area and sample environment (cryo-furnace is shown here); 8 = second precession zone; 9 = pi/2 flipper for second 90° spin-turn; 10 = analyzer; 11 = detector.
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