AP3 Ultra-thin Polymer X-ray Windows
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Ultra-thin AP3 X-ray Windows Datasheet AP3 ultra-thin polymer windows are the highest performing x-ray windows available for low energy x-ray analysis. AP3 windows are ideal for applications that require maximum transmission of low energy x-rays, high mechanical strength, light rejection, vacuum tightness, and reliability. AP3 windows are used in applications where high temperature, light element detection is important and beryllium windows are ineffective (see Figure 1). Features Mounted AP3 X-ray Window Applications X-ray Detectors ■ Si(Li) Detectors ■ Si-PIN Detectors ■ Silicon Drift Detectors (SDD) Maximum transmission of low energy x-rays Charge dissipation UV, IR and visible light rejection Corrosion resistant, hermetic seal High mechanical strength, durable Minimal spectral contamination Consistent transmission across entire window Thin aluminum coating DuraCoat® Silicon support structure High purity Uniform thickness Window Specications Open Area: Helium Leak Rate: Max. Temp. (1 atm Differential): Max. Temp.(Zero Pressure Differential): Front Pressure Limit (Atmosphere Side): Back Pressure Limit (Vacuum Side): Window Composition AP3 windows are composed of ultra-thin layers of polymer, DuraCoat®, and aluminum. AP3 windows are supported by a silicon support structure designed to add support for the lm at a minimal prole (open area = 77%). Moxtek® attaches each window to a mount using vacuum compatible epoxy adhesive. Light Rejection and Vacuum Tightness AP3 windows provide good rejection of UV, IR, and visible light. AP3 windows also provide a hermetic barrier to gases. Every window is tested and is guaranteed to have a leak rate of less than 1 x 10-10 mbar ● L/s of helium. Mechanical Strength AP3 windows are supported by a rigid silicon grid with 77% open area. This patented window design enables the AP3 window to survive over 10,000 cycles at room temperature and a differential pressure of 1.2atm with no degradation in window performance. WIN-DATA-1001a, Rev D Subject to technical change without notice

Table 1 Elemental X-ray Transmission of AP3 Windows Atomic Number Table 1 Elemental X-ray Transmission (Kα) of AP3 Windows FIgure 1 X-ray Transmission, Film and Grid X-Ray Transmission, Film + Grid Figure 1 X-ray Transmisson of AP3 Windows Mount Design Please refer to WIN-TECH-1003 for Ultra-thin AP3 X-ray Window Mount Design requirements, available at www.moxtek.com. 452 West 1260 North / Orem, UT 84057 Phone 801.225.0930 / Fax 801.221.1121 www.moxtek.com info@moxtek.com WIN-DATA-1001a, Rev D Subject to technical change without notice