AMATERAS is a cold-neutron disk-chopper spectrometer installed at BL14 port of the Materials & Life Science Experimental Facility (MLF) at J-PARC. AMATERAS is one of the first generation disk-chopper spectrometers with pulse-shaping operation as with CNCS at SNS and LET at ISIS, and it is designed to carry out inelastic and quasielastic neutron scattering experiments in the range from cold to sub-thermal neutron energy with high intensity and fine and flexible energy resolution.
AMATERAS started its operation and user program from December 2009. Up to now, experiments of more than 140 proposals have been carried out, which resulted in more than 50 papers, 11 theses and 7 press releases. Along with performing a user program, we are continually maintaining and improving the performance of the spectrometer. During the operation, we had have number of technical problems, which we have overcome or are trying to do so.
In this presentation, based on our experience of 9 years of operation of the spectrometer, we will show the current status, issues and future plans of AMATERAS.