Abstract
We describe the Time-of-Flight (TOF) Ultra Small Angle Neutron Scattering (USANS) instrument at the Spallation Neutron Source, Oak Ridge National Laboratory (SNS, ORNL), which is now operating. The instrument, a double-crystal diffractometer (DCD), consists of a pair of triple-bounce symmetrically Bragg-reflecting Si(220) channel-cut crystals with a nominal Bragg angle of 70°, based on the Bonse-Hart multi-bounce concept. We briefly describe the instrument, present the results of measurements of double-crystal rocking curves, and exhibit a few early scientific results.
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CITATION STYLE
Agamalian, M., Heroux, L., Littrell, K. C., & Carpenter, J. M. (2018). Progress on the Time-of-Flight Ultra Small Angle Neutron Scattering Instrument at SNS. In Journal of Physics: Conference Series (Vol. 1021). Institute of Physics Publishing. https://doi.org/10.1088/1742-6596/1021/1/012033
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