The XRD-7000 provides a Thet a-Theta Goniometer, making it more capable for huge samples andvarious kinds of optional attachments. Based on Windows environments, the XRD-7000's software ismore stable and has a high security system.X-ray tube : 2kW, Cu, NF type (standard), Cr, Fe, Co, Mo, W (optional)(3kw type is also available)Goniometer : Theta -Theta 200 to 275mm (radius)0.00010(theta)(minimum step angle )Max Specimen Size : 400mmdia x 400mmH (L type) 150mmdia x 400mmH (S type)