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Bragg Institute

Specifications

Instrument location: neutron-guide hall, cold guide CG1

Velocity selector

  • wavelength range < 4.5 to > 40 Å
  • resolution nominally 7-18 % (conventional); 4 - 14 % (high resolution)
  • transmission ~ 94%

Collimation

  • Ni58 equivalent guides (50 mm x 50 mm) (4m, 7 x 2m)

Accessible Q range

  • Q-range (standard) 4 x 10-3 Å-1- 0.7 Å-1 (with largest beamstop), qmin = 6 x 10-4Å-1 with focusing lens optics
  • Source aperture to sample aperture distance: 1 - 20 m (1, 2, 4, 6, 8, 10, 12, 14, 16, 20 m)
  • Incident beam polarisation (Fe:Si sm, rf spin flipper)

Sample area

  • Typical beam size - 10 mm (diameter) - up to 30 mm (diameter)
  • Sample support system AZ Systemes (x, y, z,θ, 2-circle goniometer) maximum weight 1000 kg
  • Maximum vertical distance from support system to beam height - 500 mm

Detector

  • Sample - detector distance: 1.3 - 20.1 m (continuously variable)
  • Horizontal offset 450 mm
  • Active area: 1 m x 1 m
  • Spatial resolution 5 mm x 5 mm