Table 1.
Time in days for achieving significant DEF (> 20%) at selected positions as a function of nanoparticle size for I-125, Pd-103 and Cs-131 sources for GBS with 7 mg/g concentration.
| I-125 source |
Pd-103 source |
Cs-131 source |
||
|---|---|---|---|---|
| Position (mm) | GNP Size (nm) | Time (days) | Time (days) | Time (days) |
| 1 | 2 | 0 | 0 | 0 |
| 1 | 5 | 0.5 | 0.5 | 0.5 |
| 1 | 10 | 1 | 1 | 0.9 |
| 1 | 20 | 2 | 2 | 1.7 |
| 1 | 30 | 3 | 3.1 | 2.7 |
| 1 | 50 | 4.9 | 5.1 | 4.4 |
| 1 | 80 | 7.8 | 8.2 | 7.1 |
| 5 | 2 | 5 | 5 | 5 |
| 5 | 5 | 12 | 13 | 11 |
| 5 | 10 | 25 | 27.5 | 24 |
| 5 | 20 | 46 | 50 | 42.5 |
| 5 | 30 | 72 | 77.5 | 67.5 |
| 5 | 50 | 120 | 130 | 110 |
| 5 | 80 | 195 | >200 | 176 |
| 8 | 2 | 12 | 13 | 11.5 |
| 8 | 5 | 31 | 34 | 29 |
| 8 | 10 | 60 | 66 | 56 |
| 8 | 20 | 120 | 132 | >200 |
| 8 | 30 | 182 | 198 | >200 |
| 8 | 50 | >200 | >200 | >200 |
| 8 | 80 | >200 | >200 | >200 |
| 20 | 2 | 72 | 82 | 70 |
| 20 | 5 | 192 | >200 | 177 |
| 20 | 10 | >200 | >200 | >200 |
| 20 | 20 | >200 | >200 | >200 |
| 20 | 30 | >200 | >200 | >200 |
| 20 | 50 | >200 | >200 | >200 |
| 20 | 80 | >200 | >200 | >200 |