M. Monkenbusch et al., THE JULICH NEUTRON SPIN-ECHO SPECTROMETER - DESIGN AND PERFORMANCE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 399(2-3), 1997, pp. 301-323
The new neutron spin-echo (NSE) spectrometer that recently went into o
peration in the guide hall ELLA of the DIDO reactor FRJ-2 in Julich is
described. Design consideration and measured performance data are rep
orted. The innovation of magnetic decoupling by rigidly coupled compen
sation loops yields a number of benefits as ease of operation, stabili
ty and immediate access to high scattering angles. A new technical rea
lization of the correction elements yields large area coverage and hig
h transparency. Together with an area multidetector this results in a
highly efficient neutron usage. The operation program allows for ''set
-and-run'' operation without tuning increasing again the overall neutr
on economy.