Please note: these are the design specifications. Potential users should contact the I16 beamline team to discuss current capabilities.
| Insertion device | In-vacuum U27 undulator |
| Energy range | 3.5 - 25 keV |
| Energy range with focusing | 3.5 - 15 keV |
| Energy resolution (Δ E/E @8 keV) | 1.4 x 10-4 with Si (111) 5 x 10-5 with Si (311) |
| Energy stability (single fill or 24 hours) | < 0.1 @ 10 keV |
| Photon beamsize at sample (FWHM) | No focusing:5 (H) x 2.5 (V) mm With 3:2 focusing: 0.2 (H) x 0.05 (V) mm |
| Beam divergence at 6 keV | 110 (H) x 40 (V) µrad |

