The marble is a versatile experimental table and radiation enclosure. The default configuration comes with a size of 1800 x 1000 x 750 mm (L x W x H) and a polished steel surface on a light honeycomb structure. Other configurations with steel plates and holes in grids are available. Essentially, it can be fully configured to fit your needs, in terms of size and materials. The table can accomodate the X-ray sources like the sealed-tube systems from Xenocs and Incoatec, but also rotating anode generators and the MetalJet source by Excillum. Dual port configurations are also available. The radiation enclosure comes with 8 doors in total, made out of fully translucent plexiglass or slightly opaque PVC. The PVC doors offer better protection against scattered radiation. However, the radiation enclosure is not designed to provide full X-ray shielding. Instead, all doors have magnetic contacts and the electronical system is designed so it gives an electrical signal to the X-ray source if any of the doors is open in order to immediately close the shutter and thus provide safety protection.