A fast numerical algorithmus for thermographic diagnostics
A simple and fast numerical method to evaluate the absorbed energy and power density on the divertor plates of ASDEX and ASDEX-Upgrade is described. In part I of this paper the mathematical and numerical method is established. Principally, the absorbed energy density on a surface element as a function of time is directly computed by unfolding the measured surface temperature with an analytical function which is derived by Laplace transformation technique from the equation of heat conduction. The absorbed power density is calculated from the energy density by a special numerical differentiation technique. The method is numerically stable and accurate. In part II some experimental data of ASDEX are analysed.
Bibliographic Reference: Report: IPP 1/247 EN (1989)
Availability: Available from Max-Planck-Institut für Plasmaphysik, 8046 Garching bei München (DE)
Record Number: 198910998 / Last updated on: 1994-12-01
Original language: en
Available languages: en