Mounting powder samples for sub‐Kelvin neutron diffraction | Zendy

Ryan D. H. | Zendy; Swainson I. P. | Zendy

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Mounting powder samples for sub‐Kelvin neutron diffraction

Author(s) -

Ryan D. H.,

Swainson I. P.

Publication year - 2009

Publication title -

journal of applied crystallography

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.429

H-Index - 162

ISSN - 1600-5767

DOI - 10.1107/s002188980803570x

Subject(s) - cryostat , thermometer , powder diffraction , materials science , yield (engineering) , sample (material) , neutron diffraction , diffraction , analytical chemistry (journal) , nuclear engineering , mineralogy , optics , metallurgy , chemistry , crystallography , physics , thermodynamics , condensed matter physics , chromatography , engineering , superconductivity

The increasing availability of 3 He‐based cryostats is making it possible to add sub‐Kelvin capabilities to powder diffraction instruments. However, there are many problems associated with cooling powders below 1 K, and if great care is not taken, the sample temperature may be far higher than that reported by a thermometer attached to the sample holder. This contribution describes two practical and effective strategies for mounting powder samples that yield equilibration times of at most a few tens of minutes.

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