Techniques¶
What the modelled part of SIX is designed to do, as intent. First cut.
A technique is a portable Catalog Method; a Practice is how a facility adapts it. SIX's technique is resonant inelastic X-ray scattering, a soft X-ray scattering method new to CORA's imaging-heritage catalog, so the Method below renders unlinked and is carried pending until a technique enters scope (TECH-1).
Resonant inelastic X-ray scattering¶
RIXS tunes the incident soft X-ray energy to an absorption edge and measures the energy and momentum the sample exchanges with the scattered photon, so the measurement is a spectrum of the emitted light dispersed by the spectrometer arm onto the photon-counting camera.
| Technique | Catalog method | Notes |
|---|---|---|
| Resonant inelastic X-ray scattering | resonant_inelastic_scattering |
the incident energy is set on the grating monochromator; the emitted spectrum is dispersed by the spectrometer arm and recorded on the photon-counting camera; Method not yet in catalog |
It needs the grating monochromator (the incident-energy and resolution chain, exit slit included), the UHV cryostat sample, and the RIXS spectrometer arm and camera. The arm scattering angle selects the momentum transfer.
Not modelled yet¶
The concrete acquisition recipes (energy maps, emission-spectrum exposures, the arm-angle and resolution settings) are not written yet; they join as the deployment approaches the point where CORA drives SIX. Whether RIXS enters CORA's catalog is an owner-scope decision on Model; soft X-ray is a new regime for the fleet (see Open questions for the world-facts to confirm first).