Full-circle Eulerian cradle for low temperature neutron investigations

Abstract
A full-circle Eulerian cradle has been developed for single crystal neutron diffraction investigations at low temperatures (2 K < T < 300 K). The device including two stepping motors is mounted completely inside the sample room of a helium cryostat. One step of the chi- and phi-motors is equivalent to a rotation of 0.005° in chi and 0.01° in phi, permitting a positioning within 0.01° in chi and 0.02° in phi with a reproducibility in the same range

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