Fig. 3From: Inline monitoring of high cell density cultivation of Scenedesmus rubescens in a mesh ultra-thin layer photobioreactor by photon density wave spectroscopyCorrelation of PDW spectroscopy with reference analyses. A Correlation of µsʹ at 906 nm from PDW spectroscopy with accumulated cellular volume derived from Coulter counter measurements. B Correlation of µsʹ at 906 nm from PDW spectroscopy with CDWBack to article page