|Guide hall n°2, cold guide H521|
|horizontal scattering geometry |
|0 Å-1 < Q < 2.5Å-1 |
|type ||HOPG (002)||GIC |
|wavelength λ||5.183 Å |
|resolution δλ/λ||0.005||0.035 |
|λ/2, λ/3... filter (removable)||solid state wavelength filter||cooled Be |
|collimation slit distance (variable)||2.5 - 4 m||3 - 5.2m |
|monochromator-to-sample-distance (variable)||2.8 - 5 m||3.5 - 6 m |
|flux (non-polarized)||6×105 n s-1 cm-2||6×107 n s-1 cm-2 |
|flux (polarized)||3.2×104 n s-1 cm-2|| |
|orientation||horizontal scattering plane |
|Sample enviroment |
|magnetic field||up to 1.1T (optional 7T cryomagnet) |
|temperature||from 2K to 400K|
|3He single detector |
|distance to sample (variable)||1.1 - 6 m |
|background (beam closed)||5 cts per minute |
|2 dim. position sensitive 3He detector |
|distance to sample (variable)||1.3 - 6 m |
|active area||30×30cm2 |
|resolution||2.8 mm (FWHM)|
|Polarisation and polarisation analysis |
|polarisers||reflection supermirror ||3He spin filter |
|efficiency ||99.8%||up to 99.9% (variable) |
|180º spin-flippers ||resonance coils |
|analyzer ||reflection/transmition supermirros or 3He spin filter |
|efficiency ||99.4% (99.9% with 3He spin filter) ||
The reflectometer SuperADAM is an angle dispersive fixed wavelength machine which offers two operation modes:a high flux option with a focussing intercalated graphite monochromator and a high resolution mode with a focussing pyrolytic graphite monochromator. The high flux option is expected to be available in 2018. An optional polarization and polarization analysis setup can be used for studies of magnetic layered systems. A two dimensional position sensitive detector allows time efficient collection of off-specular data. With a maximum scattering angle of about 85° of the detector arm Q-values up to 2.1 Å-1 can be reached for complementary measurements probing small length scales. The flexibility of the instrument permits the variation of the detector to sample and sample to monochromator distances in order to accommodate the specific requirements for incident and outgoing resolutions.
Specialised sample environment can be provided including a cryo-furnace and an electromagnet or cryomagnet.
Being a CRG-B instrument, 30% of the beamtime are made available via the standard ILL proposal scheme.
SuperADAM is operated by the Division for Material Physics of the Uppsala University headed by Prof. Dr. Björgvin Hjörvarsson.