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the [Fe(Im)6]2+ cation in the Fe(Im)6(NO3)2 salt as determined by X-ray diffraction. iron(II)-imidazole complexeSimplified diagram of the electronic splitting of the 5T state in the [Fe(Im)]2+ cation. Constant-Q

efficiency λ/2 < 0.1 % Collimation 2 variable slits: S1 (mono) max. 150 x 40 mm 2 S2 (sample) max. 150 x 40 mm 2 monochromator-to-sample distance 2.8 m Sample area max flux at sample 2x10 7 cm -2 s -1 typical ... (150 x 60 mm 2 ) Focussing PG monochromator 9 vertically bending HOPG(002) crystals d = 3.355 Å or 3 Rb-intercalated graphite crystals ...

about 10 7 n/cm 2 /s Wavelength range 0.8 - 3.2 Å Sample stage-to-beam distance 40 - 70 mm Detector (1) (1) Photonics Science Limited, Robertsbridge, East Sussex, TN32 3LA, United Kingdom. 2 CCD cameras High ... type ND blue, based upon 6 Li with added ZnS:Ag Thickness: 0.45 mm Total active area: 252 x 198 mm 2 Each pixel is 144 µm on edge Distance ...

plate Gd 2 O 3 doped BaF(Br.I):Eu 2+ Radius 200 mm Length 450 mm Active area 1250 x 450 mm 2 Angle subtended 172° in θ, 49° in ν Pixel size 125, 250, 500 µm 2 Sample environment (1) Ambient or (2) Oxford ... Choice of neutron λ ranges ~2.9 to 3.9 Å, 3.6 to 4.7 Å, 4.1 to 5.3 Å Collimation Pinholes 0.5 to 2.9 mm Flux at specimen (λ-centre = 3.5 Å; ...

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 2.662 0.75 4.10 1.0 Collimation α 0 = 12.λ (Å) α 1 , α 2 , α 3 = 10', 20', 30', 40', 60' adjustable ... The monochromator covers an angular range 16°< 2θ M <80°. The sample covers an angular range -70°< 2θ S <120°. The analyser covers an angular ...

) 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 virtual source D=40 mm sapphire filte unpolarised Si (111) (190x200mm 2 ) 3.135 3.0 4.5 11 ... Si (111) 3.355 3.135 horizontal and vertical focusing 3 He detector 4 x 10 cm 2 (vertical) Beam cross-section 20 x 20 mm 2 Instrument ...

Reactor hall, through-tube H6-H7 Neutron Flux: 5 x 10 14 n cm -2 s -1 Available Crystals: Flat Si (220) Ge (111) Ge (220) Bent Si (220) Ge (220) Eff. Solid Angle: Flat: ~ 10-11 sr Bent: ~ 10-7 sr Best ... Targets Materials stable elements enriched isotopes Dimensions 40 x 4 x 0.02 mm 3 (bent) 20 x 17 x 2 mm 3 (flat) Mass up to a few g Temperature ~ ...

PG 002: 2.20 ... 3.60 Å PG 004: 1.10 ... 1.80 Å Cu 220: 0.85 ... 1.50 Å Cu 111: 1.25 ... 2.24 Å take-off angle 2θM 39 ° ... 65° resolution δ> E i / E i 3 ... 6 % flux on sample 5 x 105 cm -2 s -1 background ... choppers ν max 5 000 rpm Fermi chopper ν max 32 000 rpm duty cycle 3 x 10 -3 beam size on sample 2 x 4 cm 2 primary collimation δθ 1° ...

x 75 mm 2 Monochromator crystal d -spacing in Å k i in Å -1 flux in 10 6 n cm -2 s -1 PG (002) 3.355 1.3 - 3.3 2.662 9.3 Cu (111) 2.087 2.0 - 5.3 2.662 3.6 Heusler (111) 3.452 1.3 - 3.22.662 2.0 Collimation ... Collimation α1 = (0.015/ki) rad/Å -1 α2, α3, α4 = 10', 20', 30', 40', 60' adjustable by soller collimators Analyser horizontally focussing ...

the GRANIT optical elements Optics transport mirror 25 x 30 cm 2 (gravitational quantum states in flow-through mode) specular trap 30 x 30 cm 2 with vertical walls of ~ 500 µm (gravitational quantum states