Techniques¶
What the modelled part of P65 is designed to do, as intent. First cut.
A technique is a portable Catalog Method; a Practice is how a facility adapts it. P65's XAS technique earns no catalog Method today, so the Method below renders unlinked and is carried pending until a technique enters scope (TECH-1).
Applied X-ray absorption spectroscopy¶
P65 scans the incident energy across an absorption edge (the channel-cut DCM) and reads the absorption in transmission (ion chambers) and fluorescence, for routine applied EXAFS / XANES (catalysis, batteries, environmental science).
| Technique | Catalog method | Notes |
|---|---|---|
| X-ray absorption spectroscopy (EXAFS / XANES) | xas_spectroscopy |
the CDCM energy scan read against transmission / fluorescence; reuses the xas_spectroscopy slug BMM / ISS / i20-1 / P04 / P64 share, a further consumer (TECH-1) |
The applied half of the XAS pair¶
P65 is the applied / high-throughput half of the PETRA III XAS pair, the sibling of the advanced P64. Where P64 specialises in dilute high-rate fluorescence with a large multi-element detector, P65 serves routine transmission + fluorescence EXAFS. Both reuse the xas_spectroscopy slug; neither coins a new Family or Method. P65's instrument anatomy is deliberately thin (a Monochromator energy axis, LinearStage sample bank, Slit, Table), matching what the registry exposes.
Not modelled yet¶
The concrete acquisition recipes (the step / continuous energy scans, the ion-chamber / fluorescence detection chain, the sample-changer throughput loop) are not written yet; they join as the deployment approaches the point where CORA drives P65. Whether xas_spectroscopy enters CORA's catalog is an owner-scope decision on Model; see Open questions for the world-facts to confirm first.