ID09 - White Beam Station - Time-resolved Beamline

Synopsis

Beamline for experiments with a time resolution down to 100 picoseconds. Structural changes are initated by short laser pulses or rapid mixing of liquid solutions and are probed by delayed x-ray pulses. Set-up includes unique x-ray optics for intense polychromatic X-ray beams.
Status:  open

Disciplines

  • Chemistry
  • Life Sciences
  • Physics
  • Materials and Engineering

Applications

  • Chemical dynamics in solution
  • Protein dynamics in solution and crystals
  • Surface melting and surface reactions probed by grazing incidence reflectivity, diffraction and scattering

Techniques

  • XRD - X-ray diffraction
  • WAXS - wide-angle X-ray scattering
  • GID - grazing incidence diffraction
  • Laue diffraction
  • SSX - synchrotron serial crystallography
  • XES - X-ray emission spectroscopy

Energy range

  • 8.5 - 28.0  keV

Beam size

  • Minimum (H x V) : 100.0 x 60.0  µm²
  • Maximum (H x V) : 250.0 x 100.0  µm²

Sample environments

  • 1-circle diffractometer with x, y and z sample position
  • Liquid jet circulation system
  • Flow-through capillary circulation system
  • Stopped-flow system
  • Liquid nitrogen jet for sample cooling (100-320K)

Detectors

  • Rayonix MX170-HS CCD detector
  • GaAs and MSM photodetectors for single-pulse x-ray and laser diagnostics
  • Diamond detector for X-ray single-pulse diagnostics
  • PIN diode detectors for intensity measurements

Technical details

ID09 permits time-resolved diffraction for single and poly crystals, as well as Laue diffraction. One unique feature is the intense pink beam from the in-vacuum undulator U17. The U17 is a "single-harmonic" undulator tunable between 15 and 20 keV. The raw undulator spectrum, which is asymmetric in shape, has a bandwidth of 3%. The spectrum can, if needed, be made symmetric with multilayer crystals (1-3% bw). Narrow bandwidths are also avaiable from a conventional channel-cut silicon monochromator (Si111). The chopper system can make 100 picosecond, microsecond or millisecond pulses.

[1] M. Wulff, A. Plech, L. Eybert, R. Randler, F. Schotte, P. Anfinrud, "Realisation of sub-nanosecond pump and probe experiments at the ESRF", Proceedings of the Faraday Discussion 122 (2002) 13-26.

[2] M. Cammarata, F. Ewald, L. Eybert, W. Reichenbach, M. Wulff, P. Anfinrud, F. Schotte, Q. Kong, B. Lindenau, J. Rabiger, S. Polachowski, "Chopper system for single pulse experiments with synchrotron radiation", Review of Scientific Instruments, 80 (2009) 015101-015111.

Latest publications

View all publications
Tuning and tracking of coherent shear waves in molecular films

Lemke H.T., Breiby D.W., Ejdrup T., Hammershøj P., Cammarata M., Khakhulin D., Rusteika N., Adachi S.I., Koshihara S., Kuhlman T.S., Mariager S.O., Nielsen T.N., Wulff M., Sølling T.I., Harrit N., Feidenhans'l R., Nielsen M.M.,
ACS Omega 3, 9929-9933 (2018)