Monte-Carlo Ray-Tracing Studies on Multiplexing Prismatic Analyzers for Implementation on MANTA at the High Flux Isotope Reactor
ORAL
Abstract
Condensed matter physics has been revolutionized by the 1956 invention of the Nobel prize-winning triple-axis spectrometer. The latest development in triple-axis spectroscopy is the use of so-called multiplexing analyzer systems, seen at several neutron scattering laboratories and most recently at the Swiss Neutron Source’s instrument CAMEA [2]. By using multiplexing analyzers, CAMEA is able to greatly improve upon the detection efficiency of a traditional triple-axis by using the combination of multiple analyzers and position-sensitive detectors to provide energy-resolved measurements. Oak Ridge National Laboratory aims to utilize this technology, along with further developments, for a next generation triple-axis spectrometer known as the Multi-Analyzer Neutron Triple Axis (MANTA). An optimal way to design a neutron scattering instrument is to use Monto-Carlo simulation programs, such as McStas. This talk will focus on in-silico optimization of the prismatic analyzer concept, to simultaneously optimize MANTA’s future hardware design and data analysis technique.
*This work was supported by the Letson Fellowship, the Presidents Undergraduate Research Award, and by DOE grant DE-SC-0018660.
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Publication: [1] Desai, Mourigal, Granroth, Williams, et al. "Simulated Studies on Multiplexing Prismatic Analyzers for Implementation on the Neutron Triple Axis Spectrometer MANTA" (Under Preparation)
[2] Groitl, Graf, Birk, Markó, Bartkowiak, et al. "CAMEA—A novel multiplexing analyzer for neutron spectroscopy" Review of Scientific Instruments (2016)
Presenters
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Adit Desai
- Georgia Insititute of Technology