Table 2 Left column: main parameters relevant for the operating regime of the X-ray source; the electron bunch and scattering laser pulse figures were used as input of the Thomson scattering simulation code TSST.
Thomson scattering X-ray source parameters | Imaging simulation parameters | ||
|---|---|---|---|
Electron bunch | SAD | 1000 mm | |
Size | 2 μm × 2 μm (tr), 3 μm (long) | ADD | 1500 mm |
Divergence | 10 mrad | Magnification | 2.5 |
Bunch charge | 100 pC | Detector size (transverse × axial) | 50 × 25 mm2 |
Mean energy | \( \sim 50\,{\rm{MeV}}\) | Detector pixel size | 250 μm |
Energy spread | \(\lesssim \,\mathrm{20 \% }\) rms | X-ray pulse duration | 0 |
Scattering laser pulse | Total n. of X-ray pulses (for the entire 4D reconstruction) | 6000 to 24000 | |
Duration | 500 fs (chirped) | Unattenuated no. photons per 250 μm pixel | 5000 |
Energy | 1J | Unattenuated no. photons per 50 μm pixel | 200 |
Central wavelength | 800 nm | Size of the cubic voxel in tomographic reconstructions | 100 μm |
Spot size | 20 μm | ||
a 0 | ~0.24 | ||
X-ray source | |||
Duration | \( \sim 10\,{\rm{fs}}\) | ||
Source transverse size | 2 μm × 2 μm | ||
No. of photons within 10 mrad per laser shot | \( \sim 9.8\times {10}^{7}\) | ||
