Differential heating: A versatile method for thermal conductivity measurements in high-energy-density matter

Journal Article · Tue Sep 15 00:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4929797· OSTI ID:22490170

Ping, Y.; Fernandez-Panella, A.; Correa, A.; Shepherd, R.; Landen, O.; London, R. A.; Sterne, P. A.; Whitley, H. D.; Fratanduono, D.; Collins, G. W. ^[1]; Sio, H. ^[2]; Boehly, T. R. ^[3]

---

1. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
2. Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
3. Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States)

We propose a method for thermal conductivity measurements of high energy density matter based on differential heating. A temperature gradient is created either by surface heating of one material or at an interface between two materials by different energy deposition. The subsequent heat conduction across the temperature gradient is observed by various time-resolved probing techniques. Conceptual designs of such measurements using laser heating, proton heating, and x-ray heating are presented. The sensitivity of the measurements to thermal conductivity is confirmed by simulations.

• OSTI ID: 22490170
• Journal Information: Physics of Plasmas, Vol. 22, Issue 9; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ENERGY ABSORPTION
ENERGY DENSITY
LASER-RADIATION HEATING
MATERIALS
PROBES
PROTONS
SENSITIVITY
SIMULATION
TEMPERATURE GRADIENTS
THERMAL CONDUCTION
THERMAL CONDUCTIVITY
TIME RESOLUTION
X RADIATION