Tp. Martin et al., DETECTION OF LARGE FULLERENE CLUSTERS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 88(1-2), 1994, pp. 1-5
Large clusters are notoriously hard to detect. Clusters of fullerene m
olecules containing up to 10000 carbon atoms pose a special problem in
that they tend to bounce elastically off the detector. High post acce
leration and multiple charging can be used to overcome the problem of
detection. Intensity anomalies in the mass spectra of (C60)n and (C70)
n indicate that these clusters have a shell structure with icosahedral
symmetry.