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the instrument in June 2009. It shows that exposures as short as a few seconds are enough to get excellent Laue patterns from a sample of a few mm 3 in size. For example, the patterns shown in the movie ... demonstrate that the test crystal is twinned, all Bragg spots being splitted in two. In other words a few seconds were enough to assess the ...

(png - 111 Ki) First tests. The figure shows the raw stitched Laue pattern (a) obtained with a ruby crystal in 20s of acquisition time. Figures (b) and (c) are the transformed to cylindrical geometry and ... below was recorded during the first tests of CYCLOPS in june 2009. The test sample is a ruby crystal in the form of a small sphere of 3 mm in ...

spins in a sample over time. For a spin-echo measurement we exploit the fact that a neutron has a spin which reacts to magnetic fields. In a magnetic field the spins rotate like a clock with a speed that ... create a field that is symmetrical about the sample and the same for all incoming and scattered neutrons on a horizontal plane. Therefore, we ...

D1B (CRG) High intensity two-axis powder diffractometer D1B is a high intensity powder diffractometer with a PSD covering the angular range 0.8 to 128.8º. Highly demand for real time experiments, and for ... very small samples because of its high efficiency position sensitive detector (PSD). It runs as a CRG-A instrument by CNRS / CSIC. 50% of beam ...

velocities by using the Larmor precession of their spin in a constant magnetic field. This is a trick which decouples intensity and resolution: one can use a coarse monochromatization (5 to 15 %). The resolution ... 1 neV (240 kHz). In addition it has two options: a TOF mode of operation and a focusing mirror. IN11 is equipped with an optional ...

Flatcone The FlatCone analyzer-detector unit covers a scattering angle of about 75 degrees, separated into 31 individual channels. Every channel is equipped with a bent Si-111 analyzer with fixed final energy ... energy of 4 meV. By rotating the crystal the complete scattering plane can be mapped out in a very efficient way for energy transfers up ...

mode with a focussing pyrolytic graphite monochromator for studies of magnetic layered systems - high-flux low-resolution unpolarized option for soft-matter investigations (under construction). A two dimensional ... dimensional position sensitive detector allows time efficient collection of off-specular data. With a maximum scattering angle of ...

operates as a fixed wavelength neutron reflectometer The neutron beam from the cold neutron guide H521 arrives at the monochromator which selects a narrow wavelength band. A beryllium (Be) or a solid state ... have spins all in the same direction). The monochromatic beam is shaped by a set of slits and can be shut-off by a beam shutter. A first ...

A general view The photos show D1B equipped with the new detector (2011) with 1280 cells and covering 128º in 2θ. Here the instrument is shown with no sample environment setup.

A set-up used for magnetic studies The instrument is shown here equiped with the old PSD covering only 128º in 2θ. A cryostat 1.5-300K or even a dilution cryostat can be mounted on the D1B diffractometer