Recherche

energies from ~ 4-5 meV to more than 1 eV (see table of characteristics). The IN1-LAGRANGE (LArge GRaphite ANalyser for Genuine Excitations) secondary spectrometer setup (Fig. 1) is based on the space focussing ... variable vertical focussing crystal spacing d/Å Ei range (meV) ΔEi (meV) Cu(220) 1.278 [26-500] 2-3% Ei Cu(331) 0.829 [67-500] 1.5-2% ...

max ~ ∞ . . . max momentum transfer Q max 11.48/λo Å -1 horizontal divergence (no collim.) ~ 0.1×2×λ o [°] vertical divergence (no collim.) ~ 0.1×3×λ o [°] Collimation before sample - / 30' / 60' beam ... accommodating samples with 69 mm Ø dilution fridge (LT1) ≤ 50mK ... 1.6K vertical cryomagnet S(MV) 0 ... 2.5 Tesla and 0 ... 10 Tesla ILL orange ...

detector) Energy range: ~40 keV - 8 MeV Efficiency at 1.4 MeV = 3% (from singles 152Eu). Add-back factor at 1.4 MeV = 1.17 Gas-Filled Magnet The ambitious goal of FIPPS is to combine a high resolution gamma-ray ... the H22 guide is collimated to a halo-free pencil beam of 1.5cm diameter. The neutron beam intensity at the target position is of 10 8 ...

mm Sample area Maximum flux at sample (for Δλ/λ = 10%) 4.1x10 7 n cm -2 s -1 Brightness (flux / unit solid angle) 3.57x10 11 n cm -2 s -1 strd -1 Maximum sample dimensions 15 mm x 15 mm Sample environments ... Cryostat, Cryomagnet, Furnace, Stopped-flow, Shear cell Detectors Sample - Detector distances 1.2 ... 12.8 m Detector 1 (rear): Single panel ...

99.9% efficient, wavelength dependent) 0.002 Å-1 < q < 2 Å-1 Non-polarised monochromatic Ni/Ti multilayer stack Wavelength 5.5 Å 0.005 Å-1 < q < 1.5 Å-1 Resolution Δλ/λ = 4% (FWHM) Polarised monochromatic ... monochromatic Fe/Si multilayer stack (98.7% efficient) Wavelength 5.5 Å 0.005 Å-1 < q < 1.5 Å-1 Resolution Δλ/λ = 4% (FWHM) Polarisation ...

Cu220 ~5.0·10 7 n cm -2 s -1 for λ=0.5 Å (327 meV) / Cu220 ~0.75·10 7 n cm -2 s -1 for λ=0.35 Å (668 meV) / Cu331 Incident wavelength Continuously variable (see IN1 specifications). The typical values of ... H8 Monochromators Si(11L=1,2,3), Cu(220) and Cu(331), all 20 cm high and 23 cm wide, all with variable horizontal and vertical focussing Flux ...

= 3.362 Å 1x10 7 n.cm -2 .s -1 polarising, less-flux, better resolution Co 0.92 Fe 0.08 (200) d = 1.771 Å 2x10 6 n.cm -2 .s -1 non-polarised, high flux, high resolution Cu (200) d = 1.807 Å 1x10 Zero-field ... hours Low-field option Electromagnet 0.01T < H < 0.6T 1.5K < T < 300K Vertical access -24° < ν < +5° High-field option 10T Cryomagnet 1.0T < ...

Ge[115] crystals of 1 x 5 x 1 cm 3 take-off-angle 135° Germanium [hkl] wavelengths λ /Å 557 1.051 337 1.277 551 1.464 335 1.594 (optimum λ) 331 2.398 113 3.152 flux at sample λ = 1.594 Å Å 10 6 high resolution ... <ω <360° Detectors 128 3 He counting tubes background without sample 0.1 Hz Sample environment cryostat 1.5 to 300 K cryofurnace 1.5 to ...

pixel width 1.3 deg. no. of pixels 31 angular coverage 75 deg. SA distance 765 & 1000 mm analyzer crystals Si 111 cold neutrons k f = 1.4 Å -1 ΔE = 0 - 10 meV thermal neutrons kf = 3 Å -1 ΔE = 0 - 40 meV ... when working with thermal neutrons (k f = 3Å -1 ). With cold neutrons the choice of k f = 1.4 Å -1 permits to access a window of energy ...

~10 8 n cm -2 s -1 angle undeflected beam 0.62˚ angles deflected beam -2.5˚ < θ < 3.8˚ (horizontal) constant wavelength resolution δλ/λ [0.8-7.0%] elastic Q-range (down) 0.0045 – 0.42 Å -1 (horizontal) elastic ... elastic Q-range (up) 0.0045 – 0.27 Å -1 (horizontal) Detector type 3 He Tubular Aluminium Monoblock sample-detector distance 1.0 – 2.8 m ...