The solar S-tube receiver optical characterization testbed determines the optical properties of a PTC receiver tube by non-destructive testing.
The testbed can make simultaneous spectral measurements of specular transmittance and reflectance in a range wavelength range of 300 nm to 2500 nm in measurement stages of up to 10 nm.

Manufacturer: UNIZAR
Model: S-TUBE
Location: CENER (Sangüesa)