HR: 14:10h
AN: MR13B-03    [Abstracts]
TI: Assessing Dispersion Induced Errors in Spectroradiometric Temperature Measurements
AU: * Benedetti, L
EM: benedetti@esrf.fr
AF: Energy and Environment Directorate, Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, CA 94550 United States
AU: Farber, D
EM: Farber2@llnl.gov
AF: Energy and Environment Directorate, Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, CA 94550 United States
AU: Guignot, N
EM: nicolas.guignot@esrf.fr
AF: European Synchrotron Radiation Facility, 6, rue Jules Horowitz, Grenoble, 38000 France
AB: The laser-heated diamond anvil cell (LHDAC) is a valuable quantitative tool for the earth and planetary sciences because it can reproduce the thermodynamic conditions in planetary interiors, making possible measurements of material properties for those portions of planets that are not directly observable. The utility of the LHDAC is diminished, however, when systematic imaging-system-related errors lead to difficulty in comparing the results of different experiments and different labs. We present calculations detailing systematic errors in spectroradiometric temperature measurements due to the diamond anvil itself. Wavelength-dependent index of refraction and absorption can lead to errors of several hundred K. In addition, we assess methods for interpreting data already in the literature with respect to these sources of error.
DE: 3900 MINERAL PHYSICS
DE: 3994 Instruments and techniques
DE: 3999 General or miscellaneous
SC: Mineral and Rock Physics [MR]
MN: Fall Meeting 2005