The "Basic" track system (Figure 1) consists of three rigid, square-tubular sections: 1) a 1.8 m aluminum "loading" section with photodetector scanner for core initialization, 2) a central 0.5 m nonmagnetic/nonconducting section with adjustable mounting fixture for the MS2C sensor, and 3) a 1.8 m aluminum "take-up" section.
