MIT MRSEC - Materials Reseach Science and Engineering Center

X-ray Diffraction Shared Experimental Facility

PANalytical X'Pert PRO XRPD

Instrument Status

This instrument is fully functional. If you would like to be trained in its use, please contact facility staff.

Instrument Description

The PANalytical X'Pert Pro is a conventional 1.8kW sealed X-ray tube source, using a Cu target, and a vertical circle theta:theta goniometer with a radius of 240mm. This design keeps the sample horizontal during data collection and enables the use of several different configurations and sample stages.

The default configuration of this instrument is in Bragg-Brentano geometry with a high-speed high-resolution X'Celerator position sensitive detector, using the Open Eularian Cradle (OEC) sample stage. This combination usually gives excellent quality XRPD data over relatively short data collection times. However, it can only be used for polycrystalline samples, and data below 4deg 2theta require special consideration. The high-speed data collection is facilitated by the X'Celerator detector, which measures ~2.1deg 2theta of data simultaneously-- this is roughly equivalent to 127 point detectors simultaneously collecting data. Unlike previous generations of linear position sensitive detectors, the X'Celerator has high resolution, with a minimum step size <0.01deg, and a high dynamic range.

We also have several accessories for this instrument, including a Anton Paar HTK1200N furnace for in-situ high temperature measurements (25º C-1200º C), an Oxford Phenix cryostat for in-situ low temperature measurements (293º K -11º K), a diffracted beam monochromator, and a 15-position automatic sample changer. Parallel beam optics are also available if needed, for irregular samples or for asymmetric scans.

PANalytical X'Pert Pro

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