Abstract
Neutron resonance spin echo (NRSE) spectroscopy enables us to measure energytransfer in a neutron scattering process with high energy resolution. It is desirable toapply NRSE spectroscopy to pulsed neutron sources because this application allows avery wide range of the spin echo time. We have developed the neutron resonance spinflipper applicable to a polychromatic pulsed neutron beam, which is necessary for the TOF-NRSE method. Using this flipper, we have also succeeded in observing spin echosignals with polarization higher than 0.65 for the pulsed neutron beam with wavelengthfrom 0.3 to 0.9nm. We discuss those experimental results and the developments for the NRSE spectrometers at a new spallation source.
