The Philips Achieva SE 1.5T provides you with with the following Specification:
•  Type: Ultra-compact, Superconducting, Active shielded magnet
• Max FOV: 53 cm
•  Typical Homogeneity at 50*50*45 cm:    ≤ 0.5 ppm
• Length: 1.57 m (5 ft. 2 in.)
• Weight: 2,900 kg (6,400 lbs)
• Fringe Field 5G: 3.8 m x 2.4 m (12 ft. 6 in. x 7 ft. 10 in.)
• Amplitude (on axis): 33 mT/m
• Slew Rate (on axis): 122 T/m/s