Planning and Simulating Neutron Spin Echo Experiments
POSTER
Abstract
High resolution neutron spin echo (NSE) spectroscopy is one of the most powerful techniques to study the dynamics of soft matter [1]. The SNS-NSE spectrometer [2] located at the BL-15 of the Spallation Neutron Source, Oak Ridge National Laboratory is the first, and to date, the only one “classic” NSE spectrometer installed at a pulsed neutron source. Typical applications of the NSE spectrometry are studies of molecular motions at the nano- and mesoscopic scale.
While the data reduction programs such as DrSPINE [3] provide the experimenters with data that they can analyze and model, the complexity and limited access to the NSE instruments require careful planning for a successful experiment. We will show the capabilities of PySEN package that aids SNS-NSE users with planning, simulating, and optimizing experiments. A preliminary machine learning algorithm that produces a smooth detector phase map will also be presented.
References:
[1] M. Monkenbusch, D. Richter, C. R. Physique 8 (2007) 845
[2] M. Ohl et al., Nucl. Inst. and Meth. A 696 (2012) 85-99
[3] P.A. Zolnierczuk et al. J. Appl. Cryst. (2019). 52, 1022-1034
While the data reduction programs such as DrSPINE [3] provide the experimenters with data that they can analyze and model, the complexity and limited access to the NSE instruments require careful planning for a successful experiment. We will show the capabilities of PySEN package that aids SNS-NSE users with planning, simulating, and optimizing experiments. A preliminary machine learning algorithm that produces a smooth detector phase map will also be presented.
References:
[1] M. Monkenbusch, D. Richter, C. R. Physique 8 (2007) 845
[2] M. Ohl et al., Nucl. Inst. and Meth. A 696 (2012) 85-99
[3] P.A. Zolnierczuk et al. J. Appl. Cryst. (2019). 52, 1022-1034
*This manuscript has been co-authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).
Presenters
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Piotr A Zolnierczuk
- Oak Ridge National Lab