X-ray windows for applications in high vacuum

AP series from Moxtek

AP windows are ideal for applications that require high transmission of low-energy x-rays in high vacuum with differential pressure and the highest possible vacuum integrity. AP windows are most commonly used in microanalysis applications.

AP 3 windows have survived over 10,000 cycles at 1.2 atm differential pressure. In addition, the these windows have been operating in customers instruments for over 15 years without problems.

The products enable customers to not only detect, but also quantify elements as light as Beryllium in their instruments.

The AP5 windows come with a new carbon-based support structure. Customers can now enjoy a significantly higher acceptance angle, up to 11% higher solid angle, and up to 20% more transmission for higher overall count rates. AP5 windows can be used in all applications where AP3 windows are used.

  • Maximum transmission of low energy x-rays
  • Charge dissipation
  • UV, IR and visible light rejection
  • Corrosion resistant, hermetic seal
  • High mechanical strength, durable
  • High x-ray transmission
  • Unique design geometries possible
  • Minimal spectral contamination
  • Consistent transmission across entire window



AP3 Ultra-thin X-ray window
AP5 Ultra-thin X-ray window
Technical Note: Ultra-thin AP window mounts


Ales Jandik
Ales Jandik


Quantum Design

Krivoklatska 37
199 00 Praha 9
Czech Republic

Phone:+420 607 014 278
Ales JandikSales Manager
+420 607 014292