•Zero diffraction plate is made of single crystal Silicon cut at special orientation •Perfect for sample holder of powder XRD, which has no background noise from 2 to 120 o ( 2Q angle Cu Ka X-Ray ) •Size: 24.6 mm diameter x 1.0 mm Thickness •Weight: 1.40g each •Surface: one side optical polished •Fit with XRD of Siemens, Scintag, Rugaku and many more •Si P-typeB-doped •resistivity: 10-15 ohm.cm