ERWIN

ERWIN

ERWIN (Energy Research With Neutrons) is a high-efficiency diffractometer for rapid data collection and parametric material analyses. The two-dimensional position-sensitive ³He wire chamber detector covers a scattering angle range of 135° (in 2θ) and a vertical angle of 15°. It thus enables the characterisation of powder samples, textured bulk samples, and single crystals.

The detector concept permits the recording of diffraction patterns without repositioning the detector bench, leading to short measurement times. Thus, ERWIN is well suited for various applications ranging from investigations of solid-state reactions, time-resolved measurements, parametric studies, and investigations on small samples.

ERWIN utilises the monochromator angle of 90° at beam tube SR-8b with a vertically focussing Ge511 monochromator, corresponding to a wavelength of 1.54 Å.

At the next upgrade level, ERWIN will be equipped with three different monochromator positions with discrete 42°, 90°, and 120° take-off angles and optimised primary neutron optics to enable more flexibility in using maximum flux or optimised resolution.