Fig. 2From: High-Quality Green-Emitting Nanodiamonds Fabricated by HPHT Sintering of Polycrystalline Shockwave DiamondsThe size distribution of the DP 0–0.05 polycrystalline diamond fraction with a mean size ~ 27 nm measured by a differential centrifugal sedimentation apparatus (CPS disc centrifuge, CPS Instruments Inc., USA)Back to article page