Table 5: Values of Ck,w, Ck,vol and CTDIvol in mGy for adult chest phantoms.
| Phantom | Voltage kV | Index | |||
| Ck,w | Ck,vol | CTDIVOL | |||
| Cylindrical | 120 | Value | 17.35 | 12.50 | 13.02 |
| SD | 0.32 | 0.23 | 0.24 | ||
| 135 | Value | 18.50 | 13.33 | 13.93 | |
| SD | 0.28 | 0.20 | 0.21 | ||
| Oblong | 120 | Value | 16.33 | 11.77 | 12.26 |
| SD | 0.37 | 0.27 | 0.28 | ||
| 135 | Value | 17.56 | 12.65 | 13.22 | |
| SD | 0.38 | 0.27 | 0.28 | ||