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Technical Information - Platypus
Platypus

Technical Information - Platypus

Specifications

Accessible Q range
  • Solid-liquid / air-solid : 0.005 - 0.5 Å-1 
  • Air-liquid : 0.005 - 0.30 Å-1 
Minimum reflectivity 
  • ~10-8 - design target 
  • Off-specular scattering - yes 
  • Polarised reflectometry - yes 
  • Time-of-flight using 2 - 20 Å neutrons with a 4 chopper system (Astrium) 
  • ΔT/T (Δλ/λ) = 1, 4 or 10%
Collimation
  • High precision (< 5μm accuracy), hot pressed and sintered B4C slits. 
  • Flight path (collimation system) ~ 2600 mm)
Sample area 
  • Beam size: upto 54 mm wide by 30 mm high 
  • Flux at sample position: ~109 ncm-2 s-1 
  • Sample → detector distance : 2475 mm → 3560 mm
 Analysers 
  • Polarising supermirrors

Detector

  • 3He gas, 2D 'Denex' area detector, 500mm wide by 250mm high
  • 2mm vertical resolution, 2.5mm horizontal resolution. 
  • Timing resolution < 3µs, global count rates up to 1 MHz 

Instrument reference

M. James, A. Nelson, A. Brule, and J. C. Schulz, J. Neutron Res. 14, 91-108 (2006) 

M. James, A. Nelson, S. A. Holt, T. Saerbeck, W. A. Hamilton and F. Klose, Nuclear Inst. and Methods in Physics Research A, 632, 112-123 (2011)

Polarised-neutron option: T. Saerbeck, F. Klose, A. P. Le Brun, J. Füzi, A. Brule, A. Nelson, S. A. Holt, and M. James, Rev. Sci. Instrum. 83, 081301 (2012)

User Manual

For normal unpolarised mode

Instrument location: Neutron-guide hall, cold guide CG3

Instrument Enclosure Phone: 9717 3399

 Instrument Cabin Phone: 9717 7048