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wavelength (Å) 6.271 6.271 3.275 5.654 dlambda/lambda ~12% incident energy (meV) 2.08 2.08 7.63 2.56 flux at the sample (n/cm 2 /s) @ 58 MW HF: 6.0 10 5 LB: 8.7 10 4 t.b.d. HF: 1.2e5 t.b.d., but sensibly lower ... r configurations including alignment needs about 2 days. detectors standard: PSD multidetector array (16 tubes with vertical position ...

(meV) ΔEi (meV) Cu(220) 1.278 [26-500] 2-3% Ei Cu(331) 0.829 [67-500] 1.5-2% Ei Si(311) [16.5-60] 0.8 Si(111) [4.5-20] 0.8 Collimation Boron coated collimators α2, α3, α4 = 20', 30', 40', 60' Sample beam ... beam size at sample position 3x3 cm 2 Analysers Focusing reflecting surface of 1 m 2 built around the vertical sample-detector axes from PG002 ...

solid angle covered 1.8 sr (~0.6π) min. & max. momentum transfer [Å -1 ] 0.2/λ [Å] - 11.8/λ [Å] spatial resolution [cm 2 ] 2.6 x 2.6 angular resolution [° / rad / '] 0.37° / 6.10 -3 rad / 22 detector type ... collim.) ~ 0.1×2×λ o [°] vertical divergence (no collim.) ~ 0.1×3×λ o [°] Collimation before sample - / 30' / 60' beam size at the sample ~ ...

halo-free pencil beam of 1.5cm diameter. The neutron beam intensity at the target position is of 10 8 n.cm -2 .s -1 . The collimation consists of a sequence of 5 circular apertures (10mm, 4x12mm) made from high ... completely covered by 1 cm thick borated plastics. The total length of the aperture sequence is about 2.7 meters and is kept under ...

s Δλ/λ = 2 % to 26 % (depending on chopper pair & detector distance) Collimation 4 movable guide sections 2.5 m Beam nose 2.8 m Guide cross-section 30 x 30 mm Source-to-sample distances (m) 2.8, 5.3, 7 ... distances 1.2 ... 12.8 m Detector 1 (rear): Single panel monoblock 640 x 640 mm Pixel size 5 x 5 mm 2 (128 x 128 pixels) Maximum count rate 4 ...

monochromatic mode with 5.6 Å neutrons) Translation 1.0-3.1 m Rotation -2 to +45 deg. Size 250x480 mm 2 Resolution 2.2 x 4.8 mm 2 (width x height FWHM) Instrument description D17 is the first ILL dedicated ... Chopper spinning at 550 - 3000 rpm Chopper separation 75 mm Chopper phase 0-20 deg 0.002 Å-1 < q < 2 Å-1 Resolution 0.5-20% (wavelength ...

values of λ are 0.7, 0.5 and 0.35 Å, and λ/2 filters are available for λ=0.7 Å and λ=0.5 Å. Collimation 2x2-slit horizontal + vertical diaphragm at 30 cm upstream of sample, plus additional vertical slits at ... Beam 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 ...

Monochromators take-off angle 7° < 2θM < 38° wavelength 0.42 Å < λ < 0.843 Å polarising, high-flux, low resolution Heusler Cu 2 MnAl (111) d = 3.362 Å 1x10 7 n.cm -2 .s -1 polarising, less-flux, better ... 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 ...

sensitive with 32 x 32 pixels Pixel size 2 x 2 mm 2 0.25° x 0.25° Sensitive area 64 x 64 mm 2 Sample-detector distance 40 cm Sample environment Displex cryostat with J-T stage 2 K Peltier cooler gas flow furnace ... neutron beam H3 Monochromators Cu (220) Take-off angle 2θM 13 - 56 ° Wavelength λ 0.25 - 0.85 Å Sample Beam size 0.6 x 0.6 cm2 ...

464 335 1.594 (optimum λ) 331 2.398 113 3.152 flux at sample λ = 1.594 Å Å 10 6 high resolution Å 10 7 high intensity Sample beam size at sample 2 x 5 cm 2 angular range 5° <2θ <165° 0° <ω <360° Detectors ... materials. With the new 2D-detector, the efficiency of D2B has increased by an order of magnitude, and it is now possible to measure very ...