AP3 Ultra-thin Polymer X-ray Windows0 pages

X-ray

Windows

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)

Benets

Ultra-thin polymer lm

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):

77%
<1x10-10 mbar ● L/s
40°C
70°C
2atm
1atm

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