Fig. 1
Internal and external phantom structure. Internal (3 T, looking at the front—a) and external (1.5 T, front and back—b) T1MES phantom structure. The nine tubes are supported on a translucent resin base composed of unsaturated polyester/styrene. A careful hardening and curing process ensured a smooth surface finish for the resin base. The front of the phantom (b left) contains an isocenter cross label to aid positioning as well as an LCD thermometer. Careful positioning of the bottle on the scanner table (c) with the cap towards its head end is needed to ensure it is scanned at isocenter each time. HDPE = high-density polyethylene; LCD = liquid crystal display; NiCl2 = Nickel Chloride; PE = polyethylene; PVC = poly vinyl chloride