Recherche

super-mirror (m=2) ballistic neutron guide H113, 76 m length Un-polarized beam cross-section 6 cm by 20 cm Height of the neutron beam above the floor level PF1B: 140 cm Mean neutron wavelength 4.0-4.5 A U ... Un-polarized equivalent flux at guide exit 2·10 10 n/cm 2 /s Polarized beam cross-section 3 cm by 4.5 cm or 6 cm by 8 cm Polarized equivalent ...

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

Reactor hall, thermal beam H10 Diameter of the “in-pile” beam tube extremity Ø = 170 mm Virtual source Adjustable width: typically used 30 mm wide for PG and Cu monochromators, 25 mm wide for Si monochromators ... available openings are 20’, 30’ and 40’ with additional 60’ for the secondary spectrometer. The primary beam shielding drum allows ...

polarized neutrons a supermirror bender can be mounted after the first collimator to polarize the incident beam. A curved Heusler (111) analyser replaces the normal analyser. A small field (< 15 Oe; magnitude and

condensed matter by measuring the energy exchange between a monochromatic neutron beam and the sample. From the continuous, "white" beam delivered by the H15 neutron guide, a specific wavelength (and thus incident ... Fermi chopper pulses this monochromatic beam, setting the time t 0 of its interaction with the sample. A timer then measures the ...

amagnetic no mechanism on the beam developed by TEKNIKER Variable collimator system blades Borated Al 1mm thickness size 120 mm height 200 mm long Definition of the outgoing beam Prevents cross-talk between ... modes. Its main characteristics are: possibility on working focused or imaging no mechanism on the beam mechanics completely amagnetic IMPS ...

wavelength the monochromatic beam has its highest flux of about 9.8 x 107 n cm-2 s-1. Soller collimators allow reduction of the natural divergence (27') of the incident polychromatic beam down to α1 = 10' or 20' ... Reactor hall (ILL5), level C, thermal beam H11 Monochromators for lower take-off angles HOPG (002) Cu (200) take-off angle 2θ λ/Å Φ/n ...

D19 shares the H11 thermal beam tube with the two powder diffractometers D2B and D20. Important features of D19 are: - D19 “sees” the neutrons first (from part of the H11 beam tube: diameter 20 cm at the ... Reactor hall, thermal beam H11 Monochromator vertically focussed graphite (002) germanium (11n), (335) flat copper (220), (331) copper (111), ...

series of moveable glass guides. Guide sections are inserted into or removed from the beam depending on the incident beam divergence required. The sample zone, situated 40 m down-stream from the velocity selector ... λ [nm] ≤ 4 max. wavelength at max. detector dist. (39 m) λ = 2.2 nm selector rotation normal to n-beam possible minimum wavelength at ...

monochromator and no analyser < 10 -5 at 1.26 Å with Cu monochromator and PG (008) analyser Sample beam size 10 x 8 mm 2 flux ≥5 x 10 6 cm -2 s -1 (λ = 2.36 Å; PG-monochromator and filter) ≥2 x 10 6 cm