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Barium Fluoride Zero Length
Barium fluoride viewports are offered in CF, ISO, and KF flange styles. The clean, UHV CF versions are offered using 304L or 316LN stainless steel flanges. Non-magnetic viewports are offered as standard using annealed stainless steel weld rings and high-grade 316LN and CF flanges. Flanges in 304L stainless steel are used for the high vacuum KF and ISO viewports.
- Description
- Specifications
- Transmission Curve - Calcium Fluoride
- Additional Details
- Options
Description
The rugged, bonded construction of the barium fluoride viewports allows bake-out to a maximum of 120 °C with ultra-high vacuum (UHV) performance, while the window offers extended broadband optical transmission from deep UV to the infra-red. Specially coated optics optimized to minimize reflectance at the customer-specified wavelength can be quoted on request.
Non-standard viewports can be manufactured on request, including re-entrant style microscope/camera viewports. Annealed copper gaskets and other component accessories are also supplied by TSL.
| Seal Type: | Bond |
|---|---|
| Maximum Temperature: | 120 °C |
| Minimum Temperature: | -45 °C |
| Maximum Rate of Temperature Change: | 3 °C per minute |
| Leak Rate: | <1×10-10 atm-cc/sec (He) |
| Pressure Range: | 1 bar to 1×10-9 mbar |
| Surface Quality: | 60/40 scratch/dig |
| Flatness: | λ/4 |
