Technical Specifications
| Wavelength range: | Typically use 2 to 19 Å at a disc chopper speed of 25 Hz. |
| Wavelength resolution: | Δλ/λ from 1% to 12% (5% is used for most experiments) |
| Qmax: | up to 0.3 Å-1 typical for reflection at the solid-liquid and air-solid interface (sample dependent). Detector has a maximum 2θ of 100° for thin-film diffraction options. |
| Rmin: | 10-7 (sample dependent) |
| Maximum beam size: | 50 mm (high) x 30 mm (wide) |
| Sample geometry: | Vertical |
| Collimation slits: | High precision (< 5μm accuracy), hot pressed and sintered B4C slits |
| Detector: | DENEX 300TN 3He position sensitive detector |
| Off-specular reflection: | Yes |
| Event-mode acquisition: | Yes |
| Polarisation analysis: | No (future upgrade) |
Instrument paper
A.P. Le Brun, T.-Y. Huang, S. Pullen, A.R.J. Nelson, J. Spedding, S.A. Holt, Spatz: the time-of-flight neutron reflectometer with vertical sample geometry at the OPAL research reactor, Journal of Applied Crystallography (2023) 56(1): 18 – 25 https://doi.org/10.1107/S160057672201086X