- https://www.cells.es/ca/actualitat/agenda/esdeveniments-publics-dalba/beamline-i21-2013-resonant-inelastic-x-ray-scattering-rixs-at-diamond-light-source
- Beamline I21 – Resonant Inelastic X-ray Scattering (RIXS) at Diamond Light Source
- 2016-02-05T12:15:00+01:00
- 2016-02-05T13:15:00+01:00
- Mirian García-Fernández, I21 Senior Beamline Scientist (Diamond Light Source Ltd.)
- Què
- events
- Quan
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Feb 05, 2016
de 12:15 a 13:15 (Europe/Madrid / UTC100) - On
- Sala Marie Curie
- Nom de contacte
- Inma Hernández
- Telèfon de contacte
- +34 93 592 43 89
- URL de l'esdeveniment
- Lloc web relacionat
- Afegeix un esdeveniment al calendari
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Abstract
I will present the current status of the I21 beamline at the Diamond Light Source. I21 will be a dedicated Resonant Inelastic X-ray Scattering (RIXS) beamline that will provide a highly monochromatized, focused and tunable X-ray beam onto materials, while detecting and energy-analyzing scattered X-rays using a spatially-resolved two-dimensional detector. By studying the energy and momentum differences between the incident and the outgoing X-rays, one can obtain information such as the local lattice structure (local crystal field), electron orbitals (orbital excitations), collective lattice (phonons), magnetic (spinons/magnons) and charge excitations of the material under investigation.
The I21 beamline will deliver a high flux of photons over an energy range of 200 eV to about 3000 eV, with full polarization flexibility (linear horizontal, vertical, and circular) between 440 eV and 1500 eV. The beam size at the sample position will be less than 50 × 3 (H × V) µm2. It is planned that the resolving power of the beamline will be better than 2 × 104 at 1 keV. The beamline has a length of 81 m (from x-ray source to sample), and will be equipped with a spectrometer with a maximum length of 15 meters in a dedicated external building. It will be possible to rotate the spectrometer around the sample in the horizontal scattering plane, up to a maximum scattering angle of 150°. The end station will accommodate a liquid helium cooled sample manipulator with six degrees of freedom (x, y, z, polar, azimuth, tilt), enabling the sample temperature to be controlled between 8 K and 300 K in an ultrahigh vacuum of better than 10-9 mbar. A sample load-lock, storage and preparation chamber will be provided on Day 1, with a high magnetic field setup planned as a future upgrade. User operation is expected to begin in spring 2017.
