ProLINE™ Series X-ray Windows
ProLINE™ Series windows are ideal for applications that require high transmission of low energy x-rays. ProLINE Series windows have higher performance than stretched polypropylene and other commonly used WDXRF windows. ProLINE windows are typically used for flfl ow proportional counter systems.
Features
Benefifits
Ultra-thin polymer film
High transmission of low energy x-rays
Metal support mesh (ProLINE 20)
Additional strength, improved differential pressure performance
Thin aluminum coating
Charge dissipation
UV, IR, and visible light rejection
Large open area
High count rate
High purity
Minimal spectral contamination
Uniform thickness
Consistent transmission
Window Composition
ProLINE Series windows are composed of an ultra-thin layer of Moxtek® polymer and a charge dissipative layer of aluminum attached to a thin metal frame. Window frames may be provided by the customer or by Moxtek. Custom window thicknesses available for individual applications.
X-ray Transmission
ProLINE Series windows are ideal for applications that require high transmission of low energy x-rays. ProLINE 10 windows have 100% open area without metal support. ProLINE 20 windows have reduced transmission due to the metal support grid. See transmission chart on the next page.
Vacuum Tightness
Windows typically have a leak rate of less than 1 x 10-3 mbar ● L/s of helium. Moxtek does not measure the leak rate of ProLINE windows.
Mechanical Strength
ProLINE Series 10 and 20 windows are more than four times stronger than polypropylene windows of the same thickness. ProLINE 20 windows are supported by a strong metal support grid. ProLINE 20 windows have withstood hundreds of cycles at a diffff erential pressure of 1.2atm without degradation in window performance.
Charge Dissipation
ProLINE Series windows are typically coated with 200Å of aluminum for charge dissipation and light rejection. Custom thicknesses can be requested.
Window Sizes and Active Area
Window active area geometry can be circular or rectangular. Maximum rectangular active area dimensions are 2.8” x 2.8” (70mm x 70mm). Maximum circular active area diameter is 4.0” (101.6mm).
ProLINE Series Transmission
Mounting
Care should be taken to not flfl ex the mount as damage to the window may occur.
ProLINE Series windows are bonded to metal mounts which can be supplied by either the customer or Moxtek. The preferred mount material is stainless steel 300 series. If another material must be used, Moxtek will need to approve the material. A drawing that illustrates the orientation of the window frame with respect to the metal mount should be supplied.