The general requirements for a plasma facing mirror (PFM) of a Thomson scattering system (TS) for a burning plasma experiment are (i) high and approximately constant reflectivity in the wavelength spectral range 400-800 nm; (ii) low sputtering yield and low erosion; (iii) high power damage threshold; (iv) good thermo-mechanical properties to preserve quality imaging. Rhodium-coated mirrors are chosen because they meet these requirements. Rhodium coated mirror were realized with substrates of copper and vanadium. The detailed optical characterization of these mirrors is presented: i.e., surface planarity measurements as well as roughness and reflectivity figures are presented. These data can be used for the choice of the PFM of a TS system for international thermonuclear experimental reactor. © 2001 American Institute of Physics.
All Science Journal Classification (ASJC) codes
Orsitto, F. P., Del Bugaro, D., DiFino, M., Maiolo, A., Montecchi, M., Nichelatti, E., ... Nielsen, P. (2001). Optical characterization of plasma facing mirrors for a Thomson scattering system of a burning plasma experiment. Review of Scientific Instruments, 72(1 II), 540 - 544. https://doi.org/10.1063/1.1316759