The miniature BLS setup is a compact but complete back-scattering system which can be mounted immediately before the input pinhole of a TFP spectrometer. It enables the execution of back scattering measurements on test samples without having a proper equipment on the workbench, or without disturbing the setup already built on the workbench. 

The miniature BLS setup includes a 50:50 beam splitter, gathering and focussing lenses and a small sample space. Focus and position of the focussing lens are adjustable, so that the back scattered radiation from the sample is fed  to the TFP spectrometer. 

Used together with a reference sample, the miniature BLS setup provides a reproducible and quick way to assess the efficiency of the device, whenever necessary. 

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BLS mini setup manual