Application of a hybrid pixel detector to powder diffraction

Abstract

Results obtained using a hybrid pixel photon-counting detector in powder diffraction experiments are presented. The detector works at room temperature and its dynamic response ranges from 0.01 photons pixel(-1) s(-1) up to 10(6) photons pixel(-1) s(-1). The pixel sizes are 0.33 mm x 0.33 mm for a total area of 68 mm x 68 mm. On recording high-resolution diffraction patterns of powders, a reduction of the experimental time by more than a factor of 20 is obtained without loss of data quality. The example of an X-zeolite shows that such detectors can be used for very demanding anomalous experiments. In situ experiments of quenching liquid oxides show that frames of 0.01 s can be achieved for studying such processes.

Full reciprocal-space mapping up to 2000 K under controlled atmosphere: the multipurpose QMAX furnace

“…It is well known that third-generation synchrotron radiation sources are very useful facilities in this field (Montano & Oyanagi, 1999). Nowadays, the combination of such X-ray sources and 2D position-sensitive detectors allows the collection of scattering or diffraction patterns in a second or even shorter timescales (Basolo et al, 2007;Bergamaschi et al, 2010;Ö rs et al, 2018), and full 3D exploration of the reciprocal space can be achieved around any reciprocal lattice node (RLN) within an hour (Cornelius et al, 2012) or less (Leake et al, 2019). For many years, the structural or microstructural evolution (i.e.…”

Fast pole figure acquisition using area detectors at the DiffAbs beamline – Synchrotron SOLEIL

“…The development of large area X-ray detectors with high sensitivity, large dynamic range, low noise and fast response makes possible this kind of measurement at synchrotron facilities (Brö nnimann et al, 2003;Ponchut et al, 2005Ponchut et al, , 2007Ejdrup et al, 2009;Henrich et al, 2009;Basolo et al, 2007;Rossi et al, 1999;Delpierre et al, 2007). The X-ray pixel area detector (XPAD) (Delpierre et al, 2007;Medjoubi et al, 2010Medjoubi et al, , 2012Fertey et al, 2013, and references therein) used for this study has a 500 mm-thick Si sensor and is composed of eight modules (each of them of size 15.6 Â 72.8 mm, pixelated silicon sensor); it is shown schematically in Fig.…”

Introduction to Non‐Laboratory Radiation Sources

“…Hybrid pixel detectors are a notable advance in that readout times can be as short as 2 ms (Basolo et al, 2007). Along these lines, the application of amorphous silicon area detectors, developed for use in medical imaging, also allow fast readout for powder measurements using high-energy X-rays .…”