Molecular dynamics simulations of the Debye-Waller effect in shocked copper

Murphy, William J.; Higginbotham, Andrew; Wark, J. S.; Park, Nigel

doi:10.1103/physrevb.78.014109

Cited by 16 publications

(8 citation statements)

References 27 publications

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“…We observe phase evolution from B1, B2 and liquid with increasing pressure. Future work is needed to accurately determine the thermodynamic compression path for different composite mixtures, through, for example, Debye-Waller analysis of XRD data (16,46).…”

Section: Discussionmentioning

confidence: 99%

Development of slurry targets for high repetition-rate XFEL experiments

Smith,

Rastogi,

Lazicki

et al. 2022

Preprint

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Combining an x-ray free electron laser (XFEL) with high power laser drivers enables the study of phase transitions, equation-of-state, grain growth, strength, and transformation pathways as a function of pressure to 100s GPa along different thermodynamic compression paths. Future high-repetition rate laser operation will enable data to be accumulated at >1 Hz which poses a number of experimental challenges including the need to rapidly replenish the target. Here, we present a combined shock-compression and X-ray diffraction study on vol% epoxy(50)-crystalline grains(50) (slurry) targets, which can be fashioned into extruded ribbons for high repetition-rate operation. For shockloaded NaCl-slurry samples, we observe pressure, density and temperature states within the embedded NaCl grains consistent with observations for shock-compressed single-crystal NaCl.

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Section: Discussionmentioning

confidence: 99%

Development of slurry targets for high repetition-rate XFEL experiments

Smith,

Rastogi,

Lazicki

et al. 2022

Preprint

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“…Very few studies of how the Debye-Waller effect might exhibit itself in dynamic compression experiments have been undertaken using femtosecond x-ray diffraction, although some initial computational analysis has been embarked upon 185,186 . Some work has been performed in using the same phenomenon in absorption spectroscopy experiments, given that the same physical effect occurs in Extended X-Ray Absorption Fine Structure (EXAFS).…”

Section: Temperature Measurementsmentioning

confidence: 99%

Femtosecond Diffraction and Dynamic High Pressure Science

Wark¹,

McMahon²,

Eggert³

2022

Preprint

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“…Instead of scattering into the coherent diffraction lines, there is an increased probability of elastic scattering into the diffuse background. Recently, the possibility of observing and measuring the Debye-Waller effect in shocked copper using laser-plasma x-ray sources has been discussed (Murphy, 2008), emphasizing the importance of the volumetric dependence of the Debye temperature and the required corrections to the data. Therefore, if the intensity of the diffraction lines can be measured precisely, together with the volumetric changes in the lattice, the sample temperature may be measured through the Debye-Waller effect.…”

Section: Fy 2010 Materials Studies and Techniquesmentioning

confidence: 99%

Nevada Test Site-Directed Research and Development, FY 2009 Annual Report

Bender¹

2010

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An Historical Year This annual report of the Site-Directed Research and Development (SDRD) program represents the highly significant R&D accomplishments conducted during fiscal year 2010. This year was noteworthy historically, as the Nevada Test Site was renamed to the Nevada National Security Site (NNSS). This change not only recognizes how the site's mission has evolved, but also heralds a future of new challenges and opportunities for the NNSS. In many ways, since its inception in 2002, the SDRD program has helped shape that evolving mission. As we approach 2012, SDRD will also mark a milestone, having completed its first full decade of innovative R&D in support of the site and national security. The program continues to fund advanced science and technology development across traditional Department of Energy (DOE) nuclear security areas such as stockpile stewardship and non-proliferation while also supporting Department of Homeland Security (DHS) needs, and specialized work for government agencies like the Department of Defense (DoD) and others. The NNSS will also contribute technologies in the areas of treaty verification and monitoring, two areas of increasing importance to national security. Keyed to the NNSS's broadened scope, the SDRD program will continue to anticipate and advance R&D projects that will help the NNSS meet forthcoming challenges. NSTec principal investigator M. Manard with mini mass spectrometer, which was recently described in an invited paper in International Journal of Mass Spectroscopy FY 2010 vi NSTec principal investigators M. Wu and C. Kruschwitz have written a book chapter based on their Monte Carlo work NSTec principal investigator D. Yuan describes a nuclear forensics R&D project at the 2010 LDRD symposium

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Molecular dynamics simulations of the Debye-Waller effect in shocked copper

Cited by 16 publications

References 27 publications

Development of slurry targets for high repetition-rate XFEL experiments

Development of slurry targets for high repetition-rate XFEL experiments

Femtosecond Diffraction and Dynamic High Pressure Science

Nevada Test Site-Directed Research and Development, FY 2009 Annual Report

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