... X-Ray Automatic Diffractometer 3. Goniometer 3.1 Type: Vertical(q/q or q/2q) 3.2 Goniometer radius: 180mm 3.3 Measurement range -30°~160 ... : 0.0006° 3.7 Accuracy: 0.008° 3.8 Slit: Divergence slit: 1/6°, 1/2°, 1°,2°,3°,4° Receiving slit: 0.08 ... , 0.15, 0.3, 0.4, 0.6, 1.0 ... , 2.0mm Scattering slit: 1/2°, 1°,2°,3 ...