| 摘要 |
An NMR-CT consists of a main computer(100), a microcomputer(200), a D/A wave generator(300,600), a power supply(400) for the longitudinal magnet; longitudinal magnet coils(501) for the x,y,z, axes; a coil(503) for high frequency; an exiting circuit(800) for generating the high frequency signal required to drive(503) to NMR-CT; a coupler(900) for separating the T/R signal, a receiver(1000) for amplifying the weak FID signal, a data logger(1200) for providing the A/D signal to(200); a magnet(502) whose magnitide is 0.5-20 KG and has a large hall at the center to hold the patient; and a cooling system(1400) for the magnet.
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