Micro-diffraction end-station

The end-station in two words

PLEASE NOTE THAT THE ID21 SIDE-BRANCH WILL BE TEMPORARILY UNAVAILABLE, FROM THE 4TH OF DECEMBER 2017. PROPOSALS ARE CURRENTLY NOT ACCEPTED FOR THIS END-STATION.

Installed on the side-branch of the ID21 beamline, this station consists in a complementary experimental set-up, offering X-ray micro-diffraction and micro-fluorescence capabilities in 2D scanning mode, which can be particularly useful in Cultural Heritage Sciences, Environmental, Earth and Planetary Sciences as well as in Material Sciences.

The micro-diffraction station is a stable and easy-to-use µXRF/µXRD instrument, operated at atmospheric pressure. The set-up is optimized for a single fixed monochromatic (10-4) or pink (10-2) energy of 8.53 keV. The typical beam size using KB mirrors focalization system is around 1 × 2 (v × h) µm2 with a beam flux of 4.1010 photons/s at 200mA SR current in monochromatic mode. The set-up is optimized for powder-like micro X-ray diffraction analyses in transmission. 2D diffraction patterns are collected using a 2D taper FReLoN CCD and the X-ray fluorescence signal is collected using a Ketek 80mm2 Silicon Drift Diode. Both µXRD and µXRF signals are collected in continuous scan (zap) mapping mode.

 

More technical details are available on the µXRD branch and on the µXRD end-station.

 

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Micro-diffraction branch and end-station.

Opening to users

The micro-diffraction end-station is now open to users. You are invited to apply for beamtime through the ESRF User Portal (SMIS).

The two X-ray branches of ID21 beamline (SXM microscope and micro-diffraction end-station) cannot be used at the same time. If you want to use different end-stations for the same proposal, please request beamtime on each of the end-stations in a unique proposal. Specify how many shifts are needed on each end-station and if the order of the analyses matters or not.

 

Please consult the page dedicated to sample preparation.