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The neutron powder diffractometer POWGEN at the Spallation Neutron Source has recently (2017–2018) undergone an upgrade which resulted in an increased detector complement along with a full overhaul of the structural design of the instrument. The current instrument has a solid angular coverage of 1.2 steradians and maintains the original third-generation concept, providing a single-histogram data set over a wide d -spacing range and high resolution to access large unit cells, detailed structural refinements and in situ / operando measurements.
Huq et al. (Tue,) studied this question.
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