The method of quick scan XAFS was established at the XAFS station and 1W1B beamline

Beijing Synchrotron Radiation Laboratory by employing the data acquisition technique which is widely used in industrial controlling. The efficiency and feasibility of the new method was discussed in terms of its association with various factops

such as moving speed of monochromator

sampling rate of data acquisition board

and data communication mode between devices

an optimal solution to obtain QXAFS was proposed. The new method is able to collect the extended X-ray absorption spectra on a time-scale of a few tens of seconds

and even a few of seconds for the near-edge spectra

thus promising for some time-resolved in-situ experiments. As an example

the amorphous Se powders are calcinated continuously and the phase transitions were monitored and investigated by using the developed QXAFS.