The installed SAXS, WAXS, USAXS and XPCS detectors are listed below:

Eiger2 4M: This is the main pixel detector for SAXS and USAXS (max 1000 fps).

FReLoN 4M Kodak CCD: This is an older USAXS detector, which is a fiber optically coupled FReLoN (Fast-Readout Low Noise) CCD based on Kodak KAF-4320 image sensor (max 5 fps).

Rayonix LX 170HS: This is a CCD based detector for WAXS (max 80 fps).

Eiger 500K: This is a supplementary pixel detector used mainly for XPCS (max 23000 fps).

The master controller for time resolved SAXS/WAXS/USAXS data acquisition is a compact PCI board C216 that consists of a time frame generator (TFG) with 8 programmable outputs, an 8 channel voltage-to-frequency converter (VFC), and a 32 bit, 16 channel multi channel scaler (MCS).


Schematic diagram of the data acquistion scheme involving multiple detectors and external synchronization.


[1] T. Narayanan, M. Sztucki, T. Zinn, J. Kieffer, A. Homs-Puron, J. Gorini, P. Van Vaerenbergh and P. Boesecke, J. Appl. Cryst., 55, xxx (2022);

[2] T. Narayanan, M. Sztucki, P. Van Vaerenbergh, J. Le´onardon, J. Gorini, L. Claustre, F. Sever, J. Morse and P. Boesecke, J. Appl. Cryst., 51, 1511 (2018);

[3] T. Zinn, A. Homs, L. Sharpnack, G. Tinti, E. Froejdh, P.-A. Douissard, M. Kocsis, J. Moeller, Y. Chushkin and T. Narayanan, J. Synchrotron Rad., 25 1753-1759 (2018);|

Further Information