Platypus (reflectometer)

Platypus took its first reflectivity data and continues in hot commissioning. To date the reflectivity of several thin films (polymers, metallic multilayers and gold) have been measured.

Data from a Ni/Ti multilayer “Bragg Mirror” of 25 bilayers (Ni: 113.4 Å / Ti: 79.9 Å) were collected at (Dl/l~1.3%). This multilayer film produces some spectacular off-specular features, see above. First measurements on a free-liquid surface of D₂O were also successful.