The key technical aspects of the multiple CCD diffractometer CYCLOPS (Cylindrical CCD Laue Octagonal Photo Scintillator) at the Institut Laue–Langevin are described. Laue patterns subtending 270° horizontally by 92° vertically are read out in less than 3 s to allow nearly real time exploration of reciprocal space and rapid data collection through phase transitions. The first experiments on the same thermal beam as OrientExpress have exceeded expectations and promise exciting new applications for neutron Laue diffraction.
In order to simplify bone mineralization measurements, a system using radiographic films has been updated with a digital detector. The objective of this paper was to validate this new device. Technologies and physical phenomena involved in both systems (radiographic films and digital detector) are different. The methodology used to compare the two systems was based on image quality and assessed on two main parameters: contrast to noise ratio and spatial resolution. Results showed that the contrast to noise ratio was similar between the two systems, provided that acquisition parameters were optimized. With regard to spatial resolution, a magnification factor of at least 4 or more was required to achieve the same resolution as films. A final validation was also shown on a real image of a bone sample. The results showed that both systems have similar image quality performances, and the system using digital detector has several advantages (easier to use than films, no consumables and faster acquisition time).
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