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Liquids and Amorphous Diffractometer D4

D4, a two-axis diffractometer, uses short-wavelength neutrons from the hot source, and measures diffraction patterns over a large Q-range. This feature allows characterisation of local atomic order of non-crystalline materials (glasses, liquids, amorphous solids and solutions) with excellent accuracy.

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Liquids and Amorphous Diffractometer D4

Phone on instrument D4+33 (0)4 76 20 7753

Instrument Team

NameFirst namePhone(s)SecretaryEmailFunction
FISCHERHenry+33 (0)4 76 20 7754 +33 (0)4 76 20 7226fischer(at)ill.frResponsible
CUELLOGabriel Julio+33 (0)4 76 20 7697
+33 (0)4 76 20 7132		+33 (0)4 76 20 7226cuello(at)ill.frCo-responsible
BERTONIAlain+33 (0)4 76 20 7384 +33 (0)4 76 20 7060bertoni(at)ill.frTechnician

A large array of microstrip detectors provides not only a high counting rate but also a very good counting-rate stability.  D4c (the present version of the D4 instrument) is thus well-adapted for high-precision measurements on small samples, and for sensitive difference measurements as in the case of small scattering-length contrast.

D4 shares the beam tube (H8) with the IN1 triple-axis and Be-filter spectrometers, and is therefore available for only about 50 % of the time.

Instrument Layout