Heat-release equation of state and thermal conductivity of warm dense carbon by proton differential heating.
basic_science · Level V
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- Record sourced from PubMed, PMID 31771018.
- Also identified by DOI 10.1103/PhysRevE.100.043204.
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Abstract
Warm dense carbon is generated at 0.3-2.0 g/cc and 1-7 eV by proton heating. The release equation of state (EOS) after heating and thermal conductivity of warm dense carbon are studied experimentally in this regime using a Au/C dual-layer target to initiate a temperature gradient and two picosecond time-resolved diagnostics to probe the surface expansion and heat flow. Comparison between the data and simulations using various EOSs and thermal conductivity models is quantified with a statistical χ^{2} analysis. Out of seven EOS tables and five thermal conductivity models, only L9061 with the Lee-More model provides a probability above 50% to match all data.