... or q/2q) 3.2 Goniometer radius: 180mm 3.3 Measurement range -30°~160°(2q) 3.4 Scan speed range: 1/8°~8°/min 3.5 Minimum step ... : 0.01° 3.6 Setting reproducibility: 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 ...