The recent developments in X-ray detectors have opened new possibilities in the area of time-resolved pump/probe X-ray experiments; this article presents the novel use of a PILATUS detector to achieve X-ray pulse duration limited time-resolution at the Advanced Photon Source (APS), USA. The capability of the gated PILATUS detector to selectively detect the signal from a given X-ray pulse in 24 bunch mode at the APS storage ring is demonstrated. A test experiment performed on polycrystalline organic thin films of [alpha]-perylene illustrates the possibility of reaching an X-ray pulse duration limited time-resolution of 60 ps using the gated PILATUS detector. This is the first demonstration of X-ray pulse duration limited data recorded using an area detector without the use of a mechanical chopper array at the beamline.
- Time-resolved X-ray diffraction
- Pixel detector
Ejdrup, T., Lemke, H. T., Haldrup, M. K., Nielsen, T. N., Arms, D. A., Walko, D. A., Miceli, A., Landahl, E. C., Dufresne, E. M., & Nielsen, M. M. (2009). Picosecond time-resolved laser pump/X-ray probe experiments using a gated single-photon-counting area detector. Journal of Synchrotron Radiation, 16, 387-390. https://doi.org/10.1107/S0909049509004658