Designing radiation transport tests: Simulation-driven uncertainty-quantification of the COAX temperature diagnostic

C. L. Fryer; A. Diaw; C. J. Fontes; A. L. Hungerford; J. Kline; H. Johns; N. E. Lanier; S. Wood; T. Urbatsch

doi:10.1016/j.hedp.2019.100738

Designing radiation transport tests: Simulation-driven uncertainty-quantification of the COAX temperature diagnostic

C. L. Fryer, A. Diaw, C. J. Fontes, A. L. Hungerford, J. Kline, H. Johns, N. E. Lanier, S. Wood, T. Urbatsch

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13 Scopus citations

Abstract

One of the difficulties in developing accurate numerical models of radiation flow in a coupled radiation-hydrodynamics setting is accurately modeling the transmission across a boundary layer. The COAX experiment is a platform design to test this transmission including standard radiograph and flux diagnostics as well as a temperature diagnostic measuring the population of excitation levels and ionization states of a dopant embedded within the target material. Using a broad range of simulations, we study the experimental errors in this temperature diagnostic. We conclude with proposed physics experiments that show features that are much stronger than the experimental errors and provide the means to study transport models.

Original language	English
Article number	100738
Journal	High Energy Density Physics
Volume	35
DOIs	https://doi.org/10.1016/j.hedp.2019.100738
State	Published - Jun 2020
Externally published	Yes

Funding

This work was performed under U.S. Government contract 89233218CNA000001 for Los Alamos National Laboratory ( LANL ), which is operated by Triad National Security, LLC for the U.S. Department of Energy/National Nuclear Security Administration. Appendix A

Funders	Funder number
U.S. Department of Energy/National Nuclear Security Administration
U.S. Government	89233218CNA000001
Los Alamos National Laboratory

Keywords

Radiation flow

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10.1016/j.hedp.2019.100738

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abstract = "One of the difficulties in developing accurate numerical models of radiation flow in a coupled radiation-hydrodynamics setting is accurately modeling the transmission across a boundary layer. The COAX experiment is a platform design to test this transmission including standard radiograph and flux diagnostics as well as a temperature diagnostic measuring the population of excitation levels and ionization states of a dopant embedded within the target material. Using a broad range of simulations, we study the experimental errors in this temperature diagnostic. We conclude with proposed physics experiments that show features that are much stronger than the experimental errors and provide the means to study transport models.",

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T2 - Simulation-driven uncertainty-quantification of the COAX temperature diagnostic

AU - Fryer, C. L.

AU - Diaw, A.

AU - Fontes, C. J.

AU - Hungerford, A. L.

AU - Kline, J.

AU - Johns, H.

AU - Lanier, N. E.

AU - Wood, S.

AU - Urbatsch, T.

PY - 2020/6

Y1 - 2020/6

N2 - One of the difficulties in developing accurate numerical models of radiation flow in a coupled radiation-hydrodynamics setting is accurately modeling the transmission across a boundary layer. The COAX experiment is a platform design to test this transmission including standard radiograph and flux diagnostics as well as a temperature diagnostic measuring the population of excitation levels and ionization states of a dopant embedded within the target material. Using a broad range of simulations, we study the experimental errors in this temperature diagnostic. We conclude with proposed physics experiments that show features that are much stronger than the experimental errors and provide the means to study transport models.

AB - One of the difficulties in developing accurate numerical models of radiation flow in a coupled radiation-hydrodynamics setting is accurately modeling the transmission across a boundary layer. The COAX experiment is a platform design to test this transmission including standard radiograph and flux diagnostics as well as a temperature diagnostic measuring the population of excitation levels and ionization states of a dopant embedded within the target material. Using a broad range of simulations, we study the experimental errors in this temperature diagnostic. We conclude with proposed physics experiments that show features that are much stronger than the experimental errors and provide the means to study transport models.

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JO - High Energy Density Physics

JF - High Energy Density Physics

M1 - 100738

ER -

Designing radiation transport tests: Simulation-driven uncertainty-quantification of the COAX temperature diagnostic

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