Spectrosil B Quartz Inner Window (Optistat CF/DN new style). A range of replacement fittings and accessories are available to help you change the optical configuration of your cryostat.
Spectrosil B Quartz Inner Window (Optistat CF/DN new style) and assembly. Spectrosil B is a synthetic vitreous silica. The material itself is not birefringent and standard strain-relieved low temperature window mounts ensure that Spectrosil B windows do not affect polarised light.
It is an excellent material for filtering out the near-mid IR room temperature thermal radiation, resulting in a low thermal load on the cryostat. The transmission data is for a 2 mm thick window. Inner window assembly, 15mm clear diameter x 2mm thick.
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