BEaTriX: the Beam Expander Testing X-ray facility
 
 

The experimental Chamber

 
 

The experimental chamber hosts the optics to be tested. The internal diameter of the chamber is 750 mm. The chamber is equipped with a top panel, as large as the chamber, which can be removed completely with a crane for full accessibility. The front aperture is 450 mm large, and can be fully opened.

The experimental chamber. Front (left) and back (center) and internal view (right)
 
 

The X-ray optics can be mounted on an interface, and aligned with an hexapod (H-824.GV by Physik Instrumente). The hexapod is also mounted on a traslational stage (L-511 by Physik Instrumente) to remove the optics from the X-ray path and measure the direct beam.
A thermal box is present to radiatively cool/heat the X-ray optics under test, in the temperature range T=293±25K. Two of the radiating panels are removable, giving accessibility to the optics under test and enabling possible temperature gradients in X and Y.
The limit in size of the optics that can be tested is given by the thermal box structure (internal size: 350 mm x 350 mm x 600 mm); the limit in weight is 5kg, interfacing structure included (for the SPO case, the interface is 2.6 kg), given by the hexapod maximum load.


 
 
 
 
Banner image (by Stefano Basso): BEaTriX facility - INAF Brera Astronomical Observatory site of Merate (LC) - Web site credit: B. Salmaso, D. Spiga, and the BEaTriX team - M.R. Panzera