Windows for Cryogenic Environmnents
Many cryostats are used in experimental apparatus where the samples must be irradiated or measurements made on emitted radiation from such samples.
It is, therefore, essential that appropriate windows can be incorporated into your cryostat to permit radiation to pass through the sample space.
The type of window material selected will be determined by the wavelength and intensity of the radiation, the environmental temperature and whether or not beam polarisation is required. We offer windows for a broad range of applications from Ultra-Violet, visible, mid to extreme Infrared.
Please find below examples of windows we can offer:
Room temperature windows which must be vacuum tight are generally sealed onto a rubber ‘O’ ring. The mounting method minimises strain on the windows and allows easy removal if required.
Radiation shield windows do not need to be vacuum tight but it is important that they are thermally anchored. This is achieved by retaining the window in a
copper mount using a spring clip.
Note that for cryostats reaching 500 Kelvin, only saphhire windows can be used as inner windows.