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Reactor hall, hot beam H 8 beam size: 20 cm height x 5 cm width Monochromators size: 20 cm height x 18 cm width variable vertical focussing crystal spacing d/Å Ei range (meV) ΔEi (meV) Cu(220) 1.278 [26-500] ... Er, Sm, Hf ...) can be used to suppress higher order contaminations from the incident beam or in the scattered beam. An oriented Pyrolytic ...

1×2×λ o [°] vertical divergence (no collim.) ~ 0.1×3×λ o [°] Collimation before sample - / 30' / 60' beam size at the sample ~ 15×50 mm 2 flux at the sample at 5.0 Å 6.83×10 5 [n/cm 2 /s] Detectors detector

Neutron beam The neutron beam from 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 n.cm -2 .s -1 . The collimation ... gamma ray background all apertures are doubled with 5 cm thick lead absorbers downstream the neutron beam direction. The sequence of apertures ...

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, 7.8, 10.3, 12.8 ... mode: a velocity selector and flexible system of inter-collimation apertures defines the neutron beam. TOF mode: a chopper system allows an ...

10 µm Parabolic guide between the slits to focus the beam vertically Sample position White beam flux 9.6x10 9 n/cm 2 /s Vertical sample geometry Beam area at sample 6 x 50 mm (width x height) High precision ... possible in resolution and modes of operation. The supermirror-coated guide provides the highest white beam flux at the sample position in ...

respectively. A high-transmission monitor located between monochromator and beam-defining slits is used for normalisation to incident beam intensity. The sample is mounted in an evacuated cylindrical bell jar ... Reactor Hall, Level C, Hot Beam H8 Monochromators Si(11L=1,2,3), Cu(220) and Cu(331), all 20 cm high and 23 cm wide, all with variable ...

Reactor hall, hot neutron beam H4 Hot Source at 2000°C 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 ... harmonic filter. This is particularly useful when extinction or multiple scattering are present. The beam polarisation rate depends slightly ...

Reactor hall, hot 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 4-circle ranges -20 <2θ <120° -34 <ω <48° 80 <χ< 200° -179 ... is an Eulerian cradle with offset χ-circle. A recent development also allows measurement in ‘normal beam’ (lifting-counter) geometry (i.e. ...

Reactor hall, thermal beam H11 Monochromator 28 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 ... 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 ...

transfers of up to 1 meV while working with a Be-filter in the incident beam. The work at higher energy transfers with an unfiltered beam on IN14 needs some experience and caution. A valuable tool when using