Table 2.
Basic parameters of the SPB instrument at the European XFEL.
| parameter | value (range) | unit |
|---|---|---|
| photon energy | 3–16 | keV |
| pulse energy (max at source) | approximately 1–5 | mJ |
| photons per pulse (max at source) | approximately 1–8 × 1012 photons | — |
| focal spot size | approximately 0.1 and 1.0 | µm |
| max repetition rate | 10 × 1350 (highest pulse energy) 10 × 2700 (lower pulse energies) |
s−1 |
| pulse duration (range) | few to approximately 100 | fs |
| detector pixel size (AGIPD) | 200 × 200 | µm2 |
| upstream detector | four independent quadrants (4 × 512 × 512 pixels) |
— |
| downstream detector | 2 independent quadrants (2 × 512 × 128 pixels) |
— |
| single-photon sensitivity | yes | — |
| dynamic range (at 12 keV) | >104 | photons |
| detector frame rate | 4.5 | MHz |
| sample–detector distances | approx. 0.13–5 (upstream) approx. 7–12 (downstream) |
m |
| sample delivery options | liquid jet aerosol jet fixed targets |