NIM A 266 (1988) 329-335

A new apparatus for the study of nuclear Bragg scattering

D.P. Siddons, J.B. Hastings and G. Faigel

A new monochromator system has been constructed which provides an energy 
resolution of 0.005 eV and an angular divergence of 0.4 arcs sec at an 
energy of 14.413 keV. In conjunction with a highly perfect crystal of 
isotopically enriched ^57Fe_2O_3, a beam of nuclear resonant photons was 
extracted from the synchrotron continuum with a signal-to-noise ratio of 
100:1 and an intensity > 2 quanta/s.