The following diffusion values were calculated by Blair Stringfellow using Magboltz 1 (Biagi, 1995). The assumed temperature and pressure were similar, if not identical, to the STAR operating conditions (~2 mbar above the ambient atmospheric pressure with E ~ 148 V/cm and T ~ 75F=23.9C) .
| E (V/cm) | ||||
| B (kG) | 50 | 100 | 150 | 200 |
| 0.0 | 600 | 580 | 580 | 583 |
| 1.0 | 460 | 481 | 505 | 524 |
| 2.0 | 320 | 353 | 391 | 423 |
| 3.0 | 247 | 280 | 324 | 361 |
| 4.0 | 200 | 233 | 278 | 318 |
| 5.0 | 167 | 200 | 244 | 285 |
Calculated transverse diffusion [um/sqrt(cm)] in P10 for
parallel E and B.
| E (V/cm) | ||||||
| 50 | 75 | 100 | 125 | 150 | 175 | 200 |
| 612 | 477 | 407 | 368 | 344 | 326 | 312 |
Calculated longitudinal diffusion [um/sqrt(cm)] in P10 for parallel
E and B. Values are nearly independent of the magnitude of B.
