DILUTE EXAFS / DILUTE XAFS

It is possible to obtain X-ray absorption spectra from very dilute systems (i.e. containing low concentrations of the absorbing element) in the energy range 7 - 30keV. A combination of extremely high flux from sagittaly focused beams, together with a 30-element solid-state fluorescence detector capable of count-rates in excess of 200kHz per channel, make Station 16.5the station of choice on the SRS for EXAFSmeasurements of dilute systems. With multiple scanning, good quality spectra from concentrations down to tens of ppm are routinely obtained. Minimum sample size required is 6mm x 3mm.

station 16.5