What CORA needs the i19 team to confirm before the model can be trusted.
i19 was reverse-engineered from the beamline's own bluesky device layer (DiamondLightSource/dodal: the src/dodal/beamlines/i19*.py factories and the src/dodal/devices/ classes), so the control handles in the Inventory are the beamline's real PVs, read from dodal rather than confirmed by staff. Each row below is a fact the beamline team owns, not a CORA modelling choice (those are on Model). It is a delete-on-answer queue. Priorities are Blocks-build, Blocks-go-live, and Nice-to-have.
The EH1 / EH2 grouping: which experiment hutch holds the four-circle and the Eiger, and which holds the on-axis viewing, and how the two hutches sit relative to the shared optics.
A shared i19-optics zone feeding two experiment hutches i19-1 (EH1) and i19-2 (EH2); the four-circle in EH2.
The Enclosure grouping.
ACCESS-1
Blocks-go-live
The dual-hutch shared-optics access-control: only the active hutch may drive the shared optics, enforced by the i19-blueapi optics arbiter against the active-hutch readback (BL19I-OP-STAT-01:EHStatus). How should CORA represent the active-hutch permit and the arbiter?
An Enclosure-permit + Trust-gate over the shared-optics Assets, with the arbiter as an actuate-floor seam partner (the "EPICS is the floor" pattern).
The governance seam; the CORA modelling is on Model.
SRC-1
Nice-to-have
The undulator period and type (SR19I-MO-SERVC-01).
An undulator coordinated with the DCM on an energy move; period pending.
The Newport kappa four-circle circle roles (phi / omega / kappa sample circles, the 2theta detector arm, det_z, the sample centring) and whether they compose an Assembly.
A Goniometer (kappa a setting) plus a 2theta detector arm; the Assembly(Diffractometer) is named, not built.
The diffractometer geometry; the CORA structural modelling is on Model.
DIFF-2
Nice-to-have
The reciprocal-space coordination over the four-circle (the kappa-to-eulerian / hkl rule).
A reciprocal-space PseudoAxis over the circles, the rule deferred as on 4-ID / 8-ID / i06-1.
The reciprocal-space Asset.
SERIAL-1
Nice-to-have
The serial / microfocus fixed-target arm (BL19I-MO-SRL-01, x / y / z / phi) and its raster sub-mode.
A second Goniometer for the serial / microfocus delivery; the fixed-target raster carried as a note.
The serial-arm modelling.
APERTURE-1
Nice-to-have
The MAPT pinhole + collimator microfocus aperture and whether it binds Aperture (the i03 MAPT precedent) despite being a driven, size-selectable opening.
The pinhole + collimator bound to Aperture, the configuration sizes a Capability settings schema.
The aperture Family.
DET-1
Blocks-go-live
The Eiger detector model, the OAV viewing-camera roles, the beamstops, and the backlight.
The Eiger and OAVs bind Camera; the beamstops bind BeamStop; the backlight reuses the loose Backlight.