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. 2001 Sep 17;87(12):125504.
doi: 10.1103/PhysRevLett.87.125504. Epub 2001 Aug 30.

Bonse-Hart angular profiles realized for multiply Bragg reflected neutrons

A G Wagh  1 , V C Rakhecha, W Treimer
Affiliations

Bonse-Hart angular profiles realized for multiply Bragg reflected neutrons

A G Wagh et al. Phys Rev Lett. .

Abstract

We have produced a monochromatic neutron beam with the sharpest angular profile to date. Multiple Bragg reflections from optimally designed channel-cut silicon single crystals have produced neutron beams with theoretical Darwin angular profiles. This experiment constitutes the first realization of the proposal made by Bonse and Hart 35 years ago and opens up avenues for ultrasmall angle neutron scattering studies down to wave vector transfers of 10(-5) A(-1).

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