Sample holders

Vacuum-tight re-fillable capillary cells

The quartz capillaries have an inner diameter around 1.5 mm and a volume of sample around 100 µl is needed for filling. These cells can be used for samples (liquids, solutions) that can be easily washed away after use. The chemical compatibility of the O-rings should be checked.

Disposable capillaries holder

The holes can accomodate capillaries with diameter up to 2.0 mm. It is necessary to "seal" the capillaries in a vacuum-proof way (e.g. with hot glue, a test ), or use the IN-AIR setup.

Powder holder

Washers are used as spacers, placing the powder sample in the central hole, and sticky Kapton windows are placed on the two sides to keep the sample. Washers or other compatible spacers with holes can be also used to fix thin solids, fibers.

Gel/powder holder

The holder accomodates capsules with 0.5 o 1.0 mm spacers and Kapton windows (not sticky) with thickness 50 µm or 12.5 µm. Around 20 µl (advised to have at least 50 µl) of sample are needed for filling. The capsules (with 50 µm-thick windows) allow for keeping viscous samples vacuum tight. A certain evaporation rate (around 0.09 µl/h) due to the permeability of the windows, should be taken into account in planning the measurements.

Standard GISAXS stage

The sample (at least 1 cm long) is manually placed on the stage, determining both the position in the y direction, and the orientation in the x-y plane. The sample alignment in the z, x directions and omega rotation angle is controlled by motors.