X-Ray Automatic Diffractometer 3. Goniometer 3.1 Type: Vertical(q/q or q/2q) 3.2 Goniometer ... Measurement range -30°~160°(2q) 3.4 Scan speed range: 1/8°~8°/min 3.5 Minimum step size: 0.01 ... .7 Accuracy: 0.008° 3.8 Slit: Divergence slit: 1/6°, 1/2°, 1°,2°,3°,4° Receiving slit: 0.08, 0.15 ... .0mm Scattering slit: 1/2°, 1°,2°,3°,4° Soller slit: two sets 3.9 Filter: Ni, Fe XD Automatic X-Ray Powder ...