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—Functional fit parameters for the six spheres and the corresponding squared correlation coefficients (r2).
| Sphere | R (mm) | c0 (kBq/mL) | r0 (mm) | q (mm) | r 2 |
|---|---|---|---|---|---|
| 1 | 18.5 | 40.6 | 17.7 | 4.84 | 0.99 |
| 2 | 14.0 | 39.3 | 13.1 | 4.67 | 0.99 |
| 3 | 11.1 | 38.7 | 10.0 | 4.63 | 0.98 |
| 4 | 8.5 | 38.5 | 7.13 | 4.82 | 0.97 |
| 5 | 6.1 | 36.2 | 5.06 | 4.68 | 0.91 |
| 6 | 4.8 | 34.1 | 2.53 | 4.53 | 0.78 |
