Category: Transient Plane Source
Author(s): Masataka Kinoshita, Osamu Matsubayashi, Osamu Tadai, Patrick M. Fulton, Robert N. Harris, Wataru Tanikawa, Weiren Lin
Keywords: Earthquakes, Thermal Conductivity, Thermal Diffusivity, TPS Technique, Transient Plane Source, Transient plane source (TPS) method, Tsunamis, Volumetric Heat Capacity
Abstract: An investigation was undertaken to try to gain insight into altered thermal properties of the seafloor near Japan caused by the earthquake and subsequent tsunami that devastated Japan and caused the meltdown of the nuclear reactor in Fukushima in 2011. Core samples of rock were drilled by the JFAST project and these samples were analyzed using the transient plane source (TPS) technique to determine thermal conductivity, thermal diffusivity and volumetric heat capacity. Values obtained from the TPS method were then compared to values obtained from the transient line source (TLS) technique and the data agreed well. The researchers also wanted to determine whether the samples exhibited anisotropy and thus performed another series of measurements; these measurements revealed that the core samples were not anisotropic.
Reference: Earth, Planets and Space (2014) 66:48