TABLE I.
Calculated maximum beam current for a multisource configuration, as a function of dwell time and number of focal spots during a 5 s scan, with one x-ray source always turned on at a given moment of time (protocol considers going through all sources, before returning to any given source).
| Beam current/spot (mA) | Number of focal spots | ||||||
|---|---|---|---|---|---|---|---|
| Dwell time (μs) | 4 | 20 | 30 | 40 | 50 | 100 | 200 |
| 10 | 67 | 246 | 316 | 369 | 411 | 530 | 620 |
| 20 | 64 | 216 | 269 | 307 | 335 | 410 | 461 |
| 50 | 60 | 175 | 208 | 229 | 245 | 282 | 306 |
| 100 | 56 | 143 | 165 | 178 | 188 | 209 | 222 |
| 200 | 51 | 115 | 128 | 136 | 141 | 153 | 160 |