Percentage Reduction in Exposure for Indirect-Supervision Departments and Direct-Supervision Departments Depending on Whether Students Were Present
| Parameter | Extremity | Deep-dose equivalent | Lens-dose equivalent | Shallow-dose equivalent |
| Indirect-supervision departments | ||||
| With students | 0.0013867 | 0.0002642 | 0.0002672 | 0.0002700 |
| Without students | 0.0016225 | 0.0003408 | 0.0003452 | 0.0003459 |
| Percent reduction in exposure | 14.5% | 22.5% | 22.6% | 22.0% |
| Direct-supervision departments | ||||
| With students | 0.0010380 | 0.0003689 | 0.0003748 | 0.0003748 |
| Without students | 0.0013251 | 0.0004007 | 0.0004061 | 0.0004061 |
| Percent reduction in exposure | 21.7% | 7.9% | 7.7% | 7.7% |