D33
Massive dynamic q-range small-angle diffractometer
Layout of D33: The neutron enter the instrument casemate (top left) containing neutron optical elements, pass through the collimation (middle) to the sample area (bottom left). Neutrons are recorded on 4 front panels and rear detector of the instrument.
D33 - Massive dynamic q-range small-angle diffractometer
D33 is a Small-Angle Neutron Scattering instrument for the characterization of samples with typical sizes varying from the nanometer scale to few tenth of micrometer. In addition to a standard monochromatic mode of operation, D33 offers a time of flight mode (TOF) to cover an enhanced dynamic q-range qmax/qmin in one instrument setting.
High magnetic fields, up to 17 T at the sample position, beam polarization and 3He spin analysis, facilitate and expand studies of magnetism and allow a more quantitative analysis of spin incoherent samples. The high flux allows for kinetic experiments with time resolution of the order of few milliseconds.
Applications
- Soft condensed Matter:
organic and inorganic colloidal particles; polymers blends or polymer in solution, gels, liquid crystals; self assembly of surfactant molecules. - Biology:
proteins, nucleic acids, biomembranes, vectors for drug delivery. - Material Science:
phase separation in alloys and glasses, morphologies of superalloys, microporosity in ceramics, interfaces and surfaces of catalysts. - Magnetism:
Flux line lattices in superconductors; magnetic correlations.
Layout shown in three parts
- Top:
neutron selection either with a neutron velocity selector (monochromatic mode) or with choppers (time of flight mode) - Middle:
collimation part - Bottom:
front and rear detector moving in the vacuum tube from 1.2 m to 12.8 m after the sample position.