Open questions¶

What CORA needs the SIX team to confirm before the model can be trusted.

SIX was reverse-engineered from the beamline's own bluesky profile collection (NSLS2/six-profile-collection), so the control handles in the Inventory are the beamline's real PVs, read from the startup/*.py files rather than confirmed by staff. Each row below is a fact the beamline team owns, not a CORA modelling choice (those are on Model, including the new loose families). It is a delete-on-answer queue. Priorities are Blocks-build, Blocks-go-live, and Nice-to-have.

Topology and scope¶

ID	Priority	Question	CORA assumes	Resolves
TOPO-1	Blocks-build	Does SIX share a canted straight with a sibling beamline, or run off its own undulator in series?	One root Unit Asset `SIX` on its own EPU straight.	The source topology in the descriptor.
ENC-1	Blocks-go-live	Are the PV zones `XF:02IDA/B/C/D` four separate shielded hutches or beam zones within fewer hutches?	Four enclosures, one per zone.	The Enclosure grouping.

Control and safety¶

ID	Priority	Question	CORA assumes	Resolves
CTRL-1	Blocks-go-live	Are the EPICS PV handles read from the six-profile-collection current and correct?	The handles in the descriptor are taken from the profile collection and carried confirm.	Verifying each Asset's control handle.
PSS-1	Blocks-go-live	The PSS search-and-secure permit signals for the hutches.	Permit leaves to be named; the photon shutters are `XF:02ID-PPS{Sh:FE}` / `XF:02IDA-PPS{PSh}` / `XF:02IDB-PPS{PSh}`.	The Enclosure permit signals.

Source and optics¶

ID	Priority	Question	CORA assumes	Resolves
SRC-1	Blocks-go-live	The EPU (`SR:C02-ID:G1A{EPU:1}`): type, period, and the polarization (phase) model.	One `InsertionDevice` Asset; the phase axis carried as a setting.	The insertion-device spec.
MONO-1	Blocks-build	The plane-grating monochromator: energy range, the three grating line densities (500 / 1200 / 1800 l/mm), and the c-value (cff) model.	A `GratingMonochromator` Asset (catalog Family) with energy / cff / grating-pitch / premirror-pitch / grating-translation axes.	The monochromator energy and grating model.
OPT-1	Nice-to-have	The mirrors (M1, M3, M4, M5, M6): coatings, stripes, and the hexapod / bender axis roles.	`Mirror` Assets with the config's PV roots; coatings unconfirmed.	The mirror specs.
OPT-2	Nice-to-have	The baffle slits, the exit slit, and the M5 mask: the internal axis maps.	`Slit` / `Aperture` Assets with base PVs; per-blade axes partial.	The slit and aperture axis maps.

RIXS endstation¶

ID	Priority	Question	CORA assumes	Resolves
RIXS-1	Blocks-build	The spectrometer-arm geometry: the bridge truss (`BT:1`), the in-arm optics chamber (`3AA:1`), and the detector chamber (`DC:1`): which axis is the arm scattering angle, the dispersion, and the detector distance, and how the arm pivots about the sample chamber.	One loose `SpectrometerArm` Asset with the three chambers' axes; the sample chamber as the pivot.	The spectrometer model and whether it composes into an Assembly.
RIXS-2	Nice-to-have	The RIXS camera (`XF:02ID1-ES{RIXSCam}`): the sensor, the photon-counting / centroiding pipeline, and the curvature correction.	One `Camera` Asset; the centroiding behavior carried as a note.	The detector model and Family decision.
DET-1	Nice-to-have	The counting scaler, the Femto electrometer, and the camera readout: which channels are I0 versus signal.	`FluxMonitor` Assets plus the `Camera`.	The detector channel map.
DIAG-1	Nice-to-have	The DIAGON diagnostic (`XF:02IDA-OP{Diag:1`): is it a polarization diagnostic, and what does it report?	One `GenericProbe` Asset (placeholder classification).	The diagnostic classification and Family.

Sample environment and supplies¶

ID	Priority	Question	CORA assumes	Resolves
SAMPLE-1	Blocks-go-live	The UHV cryostat manipulator (`SC:1-Cryo:S1_B`) and the Lakeshore controller: the cryo temperature range, the base pressure, and any load-lock / sample-transfer mechanism.	A `Manipulator` Asset (catalog Family, x/y/z/theta) plus a `TemperatureController`.	The sample-environment model.
SUP-1	Nice-to-have	The vacuum and cryogen supplies the UHV optics, the spectrometer arm, and the cryostat draw on.	Photon beam, cooling water, and vacuum carried in the descriptor.	The Supply records.