A new magnetic macroparticle filter design consisting of two 90" filters forming an S-shape is described. The transport properties of this S-filter are investigated using Langmuir and deposition probes. It is shown that the filter efficiency is the product of the efficiencies of two 90" filters and the deposition rate is still acceptably high to perform thin film deposition. Films of amorphous hard carbon have been deposited using a 90" filter and the S-filter, and the macroparticle content of the films are compared.
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