  The 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.
