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Drive and witness beam properties before and after the PWFA stage, respectively.
| driver (before PWFA) | witness (after PWFA) | |
|---|---|---|
| charge | 190 pC | 11 pC |
| average energy | 3 GeV | 6 GeV |
| energy spread | 10% | 3% |
| average sliced energy spread | 10% | 0.2% |
| normalized emittance | 15 μm | 0.16 μm |
| duration (fwhm) | 18 fs | 0.8 fs |
| current | 10 kA | 15 kA |
| brightness | 8.8 × 10−2 kA μm−2 | 1.2 × 103 kA μm−2 |
