Neutron Spin Echo Spectrometers at the Pulsed Neutron Source

Abstract

Neutron Spin Echo (NSE) spectrometers at the high-intensity pulsed neutron source in Japan have been discussed from about 10 years ago. A Mezei type NSE spectrometer is appropriate to achieve higher energy resolution, but a shielding against magnetic field disturbance is quite difficult and needs much amount of money. Additionally, we already have iNSE at JRR-3 which has a potential to be upgraded as a world-class NSE machine. Thus in J-PARC/MLF, we decided to construct VIN-ROSE, composed from 2 resonance type NSE spectrometers.