History of Magnetic field (No. 6)
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1 T (Tesla) = 10000 G(Gauss)
Permanent magnet (< 1 T);
geomagnetism (300~600 mG; 500 mG in Japan)
relative dielectric constant(body/vacuum) e=50~80
c=299792458 m/s c(inbody)=c/sqrt(e)
Lamor Freq for Proton 42.5781 (MHz/Tesla)
| Tesla | Frequency(MHz) | Tesla | WaveLength(cm)in vacuum | WaveLength(cm)in Body |
| 0.5 | 21.289 | 0.5 | 1408.20 | 157~199 |
| 1 | 42.578 | 1 | 704.10 | 78~100 |
| 1.5 | 63.87 | 1.5 | 469.40 | 52~66 |
| 2 | 85.156 | 2 | 352.05 | 39~50 |
| 2.89 | 123.05 | 2.89 | 243.63 | 27~34 |
| 3 | 127.734 | 3 | 234.70 | 26~33 |
| 4 | 170.312 | 4 | 176.03 | 20~25 |
| 7 | 298.047 | 7 | 100.59 | 11~14 |
| 400.000 | 9.39450092888128 | 74.95 | 8.4~10.6 | |
| 450.000 | 10.5688135449914 | 66.62 | 7.4~9.4 | |
| 500.000 | 11.7431261611016 | 59.96 | 6.7~8.5 | |
| 600.000 | 14.0917513933219 | 49.97 | 5.6~7.1 | |
| 700.000 | 16.4403766255422 | 42.83 | 4.8~6.1 |