Collimator size (mm) | Distance (cm) | Preshielding peripheral dose (cGy) | Preshielding peripheral dose (%MU) | Preshielding peripheral dose (%TD) | Monitor units | Prescribed dose (cGy) | Isodose line (%) |
---|---|---|---|---|---|---|---|
12.5 | 82 | 1.42 | 0.04 | 0.07 | 4005 | 2000 | 84 |
10 | 82 | 2.36 | 0.04 | 0.12 | 5587 | 2000 | 75 |
20, 20, 20 | 77 | 5.54 | 0.05 | 0.28 | 11374 | 2000 | 75 |
5, 5, 5 | 73 | 11.10 | 0.06 | 0.56 | 18026 | 2000 | 75 |
7.5, 7.5, 15 | 80 | 8.69 | 0.04 | 0.48 | 20487 | 1800 | 79 |
10, 10, 15 | 71 | 20.15 | 0.08 | 0.81 | 23876 | 2500 | 75 |
20, 20, 20 | 75 | 11.45 | 0.04 | 0.46 | 25794 | 2500 | 67 |
5, 5, 5 | 70 | 14.70 | 0.05 | 0.82 | 27433 | 1800 | 76 |
7.5, 7.5, 15 | 74 | 11.31 | 0.04 | 0.63 | 28411 | 1800 | 75 |
7.5, 15, 25 | 70 | 13.95 | 0.04 | 0.56 | 39476 | 2500 | 70 |