Since 1998, the Physikalisch-Technische Bundesanstalt (PTB), Germany’s national metrology institute, utilizes synchrotron radiation at the storage ring BESSY II in Berlin-Adlershof, continuing the work which started already at the former BESSY I storage ring which has been closed at the end of 1999. The PTB laboratory developed into an European center for metrology with synchrotron radiation, used by collaboration partners worldwide.
The PTB departments 7.1 and 7.2 operate a laboratory at BESSY II with currently twelve experimental stations. PTB offers metrological services to customers and cooperation partners, from routine calibrations to customized metrological solutions and metrology oriented research.
Since 2008, the measurement capabilities are significantly extended and complemented by the Metrology Light Source.
| Beamline/ measuring set-up | Source | Mono-chromator | Spectral range (Photon energy) | Spectral resolving power | Photon flux (/ s-1) | Beam size [hor. · vert. (/ mm2)] | Divergence [hor. · vert. (/ mrad2)] | Paper (DOI-Link) | |
|---|---|---|---|---|---|---|---|---|---|
| B1 | SX700 | B II Dipole | Plane grating | 50 eV to 1900 eV | 103 to 104 | 1011 | 0.3 · 1.0 | 2.0 · 0.5 | B1 |
| B2 | FCM | B II Dipole | Four crystal | 1750 eV to 11 keV | 104 | 1011 | 0.5 · 0.2 | 1.2 · 0.3 | B2 |
| B3a | White-light beamline | B II Dipole | none | up to 20 keV | undispersed | up to 1014 (1% BW) | unfocused | direct radiation | |
| B3b | Source calibration | B II Dipole | Normal incidence | 3 eV to 30 eV | |||||
| B3c | EUV irradiation | B II Dipole | Transmission filter | > 5 nm, broadband | up to 1017 | ≥ 1 · 1 (variable) | 80 · 20 | ||
| B4a | Direct undulator radiation | B II U49 | none | 75 eV to 535 eV (1. Harm.) | 1% (1. Harm.) | up to 1016 (1% BW) | unfocused | direct radiation | |
| B4b | PGM | B II U49 | Plane grating | 75 eV to 1860 eV | 103 to 104 | 108 to 1013 | 0.14 · (0.015 to 1) | 0.6 · 0.4 | |
| B4c | ID13 | B II U49 | none | ~75 eV to ~120 eV | ~84 | up to 1017 | 5 · 5 | 0.5 | |
| B5 | XPBF | B II Dipole | Multilayer | 1 keV | 102 | 108 | 0.1 · 0.1 | 0.005 · 0.005 | B5 |
| B6 | XPBF 2 | B II Dipole | Multilayer | 1 keV | ~20 | up to 1013 | up to 8 · 8 | 0.005 · 0.005 | B6 |
| B7 | Microfocus tender X-ray (under construction) | B II Dipole | Multilayer PGM or DCM | 1.5 keV to 10 keV | 103 to 104 | 1010 | 0.02 · 0.02 | 2.6 · 2.6 | |
| B8 | BAMline | B II WLS | Double crystal / Double multilayer | 8 keV to 60 keV | 103 | 107 | 1 · 1 | 0.03 · 0.03 | B8 |