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249 Cf, 251 Cf flux at target position 5.3 · 10 14 n cm -2 s -1 horizontal aperture 2β ≤ 2.3° vertical aperture 2α ≤ 0.57° solid angle W ≤ 3.2 10 -5 sr total length of main path 23 m length of exit slit ... cm energy dispersion for 1 % energy difference 7.2 cm mass resolution A/dA (FWHM) 400 for target size 0.8 x 7.5 cm 2 1500 for target size 0.16 ...

Un-polarized equivalent flux at guide exit 2·10 10 n/cm 2 /s Polarized beam cross-section 3 cm by 4.5 cm or 6 cm by 8 cm Polarized equivalent flux 3·10 9 n/cm 2 /s Polarizers Curved stack of glass plates ... Guide hall n1 (ILL7), cold neutron guide H113 Vertical liquid deuterium cold source super-mirror (m=2) ballistic neutron guide H113, 76 m ...

Detector 32 x 32 pixels, each 1 cm 2 at a distance of 4.6 m from the sample 1 bar 3 He and 0.3 bar CF 4 area 32 x 32 cm 2 pixel size 1 cm 2 angular range θ 2° ... 70° (Cryostat) 2° ... 30° (Oven, Sample Changer) ... Guide hall n°2, cold polarising guide H511 Neutron beam characteristics diameter at sample position 40 mm incident wavelength 6 ... 25 ...

x H (mm2) ki/Å-1 flux/108 n cm-2s-1 PG (002) varible double focusing, mosaic 30' 290x200 2,662 4,1 6,8 10 Cu (200) variable double-focusing, anisotropic mosaic (h:25', v:10') 290x200 4,1 7 5 3.2 Si (111) ... position can be varied in the range 0° < 2θ s < 120° in both positive or negative scattering directions. The detector block can reach angular ...

108 n cm -2 s -1 velocity selector in: 8.4 x 107 n cm -2 s -1 velocity selector, 60' collimation: 5.02 x 10 7 n cm -2 s -1 Due to the double curvature of the neutron guide there is little λ/2 contamination ... vertical cold source guide dimensions 45 x 105 mm2 with tapering towards guide end: 20 x 140 mm 2 Monochromator PG (002); d = 3.355 Å height ...

hall n°1, cold guide H15 λ 6 to 1.5 (Å) Incoming energy Ei 2.2 to 36.4 (meV) energy resolution ΔE 0.055 to 3.0 (meV) Energy resolution ΔE / Ei 2.5 to 15.0% Max energy transfer in % of Ei 45% Qmin (A-1) 0 ... sensitive area 11 m 2 total background 2 Hz Sample environment characteristics Stick length Monte-et-baisse position Sample holder cryostat ...

Multianalyser crystals 9 independent turnable blades 40 x 120 mm2 each plastically bent Ge111 (R = 5m) Acceptance angle ~ 9° Gain in counting rate a factor 3 mechanism completely amagnetic no mechanism ... software Position sensitive Detector He filled tubes 54 tubes of Φ = 9 mm 1 mm spacing size 539 x 200 mm 2 Horizontal spatial resolution 5 mm ...

angles HOPG (002) Cu (200) take-off angle 2θ λ/Å Φ/n s-1cm-2 λ/Å Φ/n s -1 cm -2 26° - - 0.82 2.4 x 10 7 28° - - 0.88 3.2 x 10 7 30° - - 0.94 4.3 x 10 7 42° 2.41 4.2 x 10 7 1.30 9.8 x 10 7 Germanium monochromator ... 63-122° hhl λ/2 contamination at λ = 1.3 Å about 0.3 % λ/2 at λ = 2.4 Å removed by graphite filters Collimation primary collimation α1 ...

(111), (224) Bragg angle 2θ m 42.7°, 70° or 90° wavelength 0.8 < λ/Å <2.4 Collimation before monochromator 60' (natural) Sample max. beam size 10 mm flux 10 7 ... 10 8 n cm -2 s -1 angular range -60° < ... es, filamentous viruses), water is a key environmental parameter. The amount of H 2 O in the sample and the H 2 O/D 2 O substitution in ...

Å -1 λ/2 contamination < 2 x 10 -4 at 1.26 Å with Cu monochromator and no analyser < 10 -5 at 1.26 Å with Cu monochromator and PG (008) analyser Sample beam size 10 x 8 mm 2 flux ≥5 x 10 6 cm -2 s -1 (λ ... (λ = 2.36 Å; PG-monochromator and filter) ≥2 x 10 6 cm -2 s -1 (λ = 1.26 Å; Cu-monochromator) Analyser vertically focussing pyrolytic graphite ...