Improving properties of free-standing Zr filter with polystyrene film

Zr/C8H8 composite filters were made by free-standing Zr filters of DC magnetron sputtering covered by polystyrene (C8H8) films prepared with Dip master 200. Soft X-ray spectral transmittance of the filters was measured in the National Synchrotron Radiation Laboratory. Results indicate that C8H8 film improves the mechanical characteristics of Zr filter and increases fabrication yield by 20%. Furthermore, C8H8 film can efficiently prevent impurities and improve environmental stability of filters.