Engineering Materials Diffractometer (VULCAN)

Commissioning of VULCAN began on June 26, 2009, when beam was confirmed.

Instrument Specifications

Time-of-flight diffractometer at SNS.
Chopper speed and bandwidth: 60 Hz, 1.44 Å; 30 Hz, 2.88 Å; 20 Hz, 4.32 Å.
Sample stage: Rotation: 360°, X,Y, +/-250 mm, Z +/-300 mm. Weight capacity: 2000 kg. Positional precision: 10 μm.
Detector: +/-90 position-sensitive detectors (3 modules each side), capable of simultaneously measuring two components.
High-intensity and high-resolution exchangeable guides, ~0.5% (HI) and ~0.25% (HR) Δ-d/d resolution.
Beam size: 2 ~17 mm horizontal and 0.2 ~17 mm vertical incident slit. 2 mm and 5 mm receiving radial collimators.
Various sample environments enable in situ diffraction measurement.