... decreased by 0.0167 gÆcm)3, from the start of the experiment. By the end of the measurement, the thickness had increased by 0.342 nm, the mass hadincreased by 0.10 ngÆmm)2 and the density ... channel 3, the mass increased by 0.02 ngÆmm)2 and the density decreased by 0.0072 gÆcm)3. After 2.5 h, the thickness increased by 0.212 nm, the mass increased by 0.05 ngÆmm)2 and the density ... during the entire experiment (Fig. 5), i.e. the thickness of the layer decreased by 0.014 nm, the layerdensity decreased by only 0.0086 gÆcm)3, and the massdecreased by 0.03 ngÆmm)2. The process...