Governance

Who will act at MOGNO, and the trust shape that will gate it. First cut.

Governance at MOGNO follows the same model as the rest of the fleet: people and autonomous agents are facility principals at the Sirius Site, and on the beamline they surface through the actions they take. Their commands are gated by a trust shape (a Zone grouping the beamline's resources, a Conduit binding the surfaces that may issue commands, and Policies that say who may do what).

MOGNO is CORA's first Sirius deployment, so Sirius is a brand-new Site: the operator pool and the safety-review structure are carried pending on the Sirius Site, shared across the facility's beamlines, until LNLS staff confirm them (GOV-1). MOGNO is a reverse-engineered scaffold rather than a pilot, so the concrete Zone, Conduit, and Policy instances are deliberately not materialized; they land when the deployment approaches the point where CORA drives MOGNO, following the 2-BM governance shape.

The safety tier is the other piece that is not yet settled. The Sirius personnel-safety permit signals and the photon and front-end shutters are not in any public source, so the Enclosure permit leaves and the interlock structure are carried pending and are not invented here (PSS-1). What is already settled is the boundary: clearances (the safety forms that must be active to start) are issued at the Sirius Site, not on the beamline, and the beamline links up to them.

MOGNO carries the hazard classes that come with a tomography beamline: an intense X-ray beam (a quasi-monochromatic dipole source running up to ~68 keV), and the radiation-enclosure interlocks of the two experiment stations. Those land at the Site safety envelope; an experiment Clearance would carry the per-experiment authorization.

The concrete Zone, Conduit, and Policy instances, and the operator pool, land when the deployment approaches the point where CORA drives MOGNO, following the 2-BM governance shape.