Electron scattering of a selective area of condensed packet platinum particles a) I(Q) of particles in trap channel, from the diffraction pattern obtained with a camera length of 680 mm and an exposure time of 1 second. b) Electron PDF of the platinum particle in the trap chip, a histogram of interatomic distances r. The dampening of oscillations around 12 Å, indicates an individual platinum particle size of 1.2 nm. The characteristic interatomic distances is displayed on the PDF.