Desciption The Nanogen-50 nanocluster source uses a unique high-pressure sputtering source to generate nanoparticles within a condensation zone. The gas flow characteristics within the condensation zone ensures refinement of the size distribution of the beam to allow precise definition of the particle size in the emergent beam. The unique configuration of the condensation zone also maximises the ratio of nanoparticle to carrier gas entering the main deposition chamber. The source can be supplied with user-selectable refinement zones to suit particular applications. Nanoparticles can be generated with as few as 30 atoms up to those with diameters exceeding 15nm.