Abstract
Neutron resonance spin echo (NRSE) technique has the potential to increase the Fourier time and energy resolution in neutron scattering by using radio frequency (rf) neutron spin-flippers. However, aberrations arising from variations in the neutron path length between the rf flippers reduce the polarization. Here, we develop and test a transverse static-field magnet, a series of which are placed between the rf flippers, to correct for these aberrations. The prototype correction magnet was both simulated in an NRSE beamline using McStas, a Monte Carlo neutron ray-tracing software package, and measured using neutrons. The results from the prototype demonstrate that this static-field design corrects for transverse-field NRSE aberrations.
| Original language | English |
|---|---|
| Article number | 033901 |
| Journal | Review of Scientific Instruments |
| Volume | 94 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 1 2023 |
Funding
This research used resources at the High Flux Isotope Reactor, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. F.L. would also like to acknowledge the support from the DOE Early Career Research Program (Award No. KC0402010) under Contract No. DE-AC05-00OR22725. YBCO films were produced by Robert Semerad at Ceraco. This work was funded by the Department of Energy STTR program under Grant Nos. DE-SC0021482 and DE-SC0018453. A number of the authors acknowledge the support from the US Department of Commerce through co-operative Agreement No. 70NANB15H259. This research used resources at the High Flux Isotope Reactor, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. F.L. would also like to acknowledge the support from the DOE Early Career Research Program (Award No. KC0402010) under Contract No. DE-AC05-00OR22725. YBCO films were produced by Robert Semerad at Ceraco. This work was funded by the Department of Energy STTR program under Grant Nos. DE-SC0021482 and DE-SC0018453. A number of the authors acknowledge the support from the US Department of Commerce through co-operative Agreement No. 70NANB15H259.