Abstract

A compact setup providing vibration damping support as well as thermal shielding for a classical LLL interferometer was developed and installed at the IBR-2 pulsed reactor at JINR Dubna. Despite the low incident neutron flux successful experiments were performed with two different LLL-type interferometer crystals and simultaneous observation of the interference patterns on two reflection orders was demonstrated. This first experience leads to the conclusion that routine experiments in the multi-wavelength regime are feasible, but a careful optimization of the setup regarding the opposing demands on TOF resolution, incident flux and background would be desirable to compensate at least partially for the rapid decrease of diffracted intensity at higher reflection orders.

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