Specifications
| Neutron beam | - Maxwellian distribution with peak intensity at ~1.5 Å
- Wavelength range: 1.20-2.85 Å
- Take-off angle range: 55-165°
- Max beam size: 60x30 mm2
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| Monochromator | - Double focusing bent perfect crystal
- Si(400) cut with [110] vertically
- Monochromator is made from 9 packets each composed from 13 wafers.
- Wafer dimensions: 270x17x0.91
- Work area: 200x170 mm2
- Thickness: 11.6 mm
- Available reflections (004), (111), (311), (511)
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Detector
| - DENEX 2D, 3He-filled,
- Total area 300x300 mm2
- Detector coverage: 15°x15° (@ LSD ~ 1000 mm)
- Angular range: 40°< 2θB < 120°
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Sample table | - Unique telescopic design
- Maximum sample weight ≤ 1 tonne
- ±250 mm travel for X and Y
- 600 mm travel for Z
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| Instrument performance | - Flux at sample position 7x106 n cm2s-1 (depends on monochromator reflection and focusing).
- Instrument is optimized for d-spacings ~ 1.1-1.3 Å to ne at ~90°.
- These are the most important reflections in engineering applications αFe(211), γFe(311), Al(311).
- For this range resolution is Δd/d ~2 x 10-3
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| Practical examples for time evaluation: | - Fe(211), gauge volume 0.5x0.5x0.5: t = 10 min to get 50 μstrain accuracy
- Fe(211), gauge volume 1x1x1: t = 1 min to get 50 μstrain accuracy.
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Instrument location: Neutron-guide hall, thermal guide TG3
Instrument reference
A. Brule and O. Kirstein, Physica B 385-386, 1040-1042 (2006).
