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 ... °(2q) 3.4 Scan speed range: 1/8 ... slit: 1/2°, 1°,2°,3°,4° Soller slit: two sets 3.9 Filter: Ni, Fe XD Automatic X-Ray Powder Diffractometer XD2 ...