Fig. 6. Cluster size distributions measured for pure (heavy) water clusters (D2O)mD+ (solid triangles, p(D2O) = 4 mPa), water clusters with one adamantane molecule (D2O)mAd+ (solid circles, p(D2O) = 3.98 mPa), and water clusters with 12 adamantane molecules (D2O)mAd12+ (solid squares, p(D2O) = 2.6 mPa). THe = 9.7 K, pHe = 2.4 MPa, electron energy 82 eV, electron current 206 μA. For comparison also (H2O)mAd+ (open circles) is shown for high water pressure p(H2O) = 4 mPa.
