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experiment A typical neutron powder diffraction experiment with D2B: The polychromatic beam from the thermal beam H11 is collimated and is diffracted by the Ge monochromator at a large take-off angle to ... high resolution. The sample - usually a cylinder of powder - diffracts the monochromatic incident beam. The sample is often placed inside a ...

Guide hall, thermal beam H25 distance reactor-core to monochromator : 65 m Monochromator crystal d-spacing (Å) k i (Å -1 ) flux (10 7 cm -2 .s -1 ) PG(002) 3.355 2.662 3.5 4.10 6.0 Heusler(111) 3.435 2 ... α 0 = 12.λ (Å) α 1 , α 2 , α 3 = 10', 20', 30', 40', 60' adjustable by Soller collimators Sample beam size LxH=5 x 4 cm 2 Analyser PG(002) ...

Reactor hall, thermal beam H13 beam tube Ø 170 mm Monochromator crystal dhkl (Å ) ki (Å -1 ) flux (10 7 n.cm -2 s -1 ) Conditions polarised Heusler (111) (230x150mm 2 ) 3.437 2.662 4.1 8.0 1.05 7.0 0.55 ... vertical focusing 3 He detector 4 x 10 cm 2 (vertical) Beam cross-section 20 x 20 mm 2 Instrument Description IN20 is installed at the H13 ...

D3 - The Spin Polarised Hot Neutron Beam Facility It is a very versatile diffractometer for magnetic structure analysis. It offers several set-ups: a high field set-up for 1D polarimetry up to 10 Tesla ... configuration Separation of coherent and spin-incoherent scattering in hydrogenous liquids Non-polarized beam with high magnetic field ...

is equiped with a 10 Tesla cryomagnet with a wide opening angle and a lifting detector. The neutron beam is polarised vertically. Large portions of the reciprocal space can be explored due to the relatively

(DECPOL). This makes it possible to monitor separately the polarisations of the incident and scattered beams, in 3 dimensions.

Guide hall nº1, cold neutron guide H112 beam size at sample 30 x 30 mm 2 (smaller for BATS t.b.d.) Sample environment cryofurnace (50 mm); max. sample diameter 48 mm 1.8 K - 560 K cryostat (70 mm); max

Beam Polarisation 0.843 Å - Erbium filter Beam Polarisation with Heusler at 0.843Å/114meV Erbium filter - code: Er (ID #1) - 0.5mm thick - efficiency: 96% - transmission: 80% ... with the 10 Tesla cryomagnet ... chamber (18x30 mm 2 beam) (+) Polar. / H4A (-) Polar. / H4A (+) Polar. / H4B (-) Polar. / H4B +0.906 ± 0.003 -0.906 ± 0.003 +0.962 ± 0.003 ...

polarising guide H511 Neutron beam characteristics diameter at sample position 40 mm incident wavelength 6 ... 25 Å monochromatisation Δλ/λ (FWHM) 15% (velocity selector) incident beam divergence <17 mrad polariser

insert of the cryomagnet into the beam. It is rotated so that a given set of crystal planes diffracts the beam. The detector is rotated and lifted towards the diffracted beam. The magnetisation distribution ... enter beam tube H4 and go to the polarising monochromator which diffracts only neutrons with a given wavelength and spin polarisation. The ...