Source

The incident beam, produced, conditioned, and defined before the sample. A walk along the source-stage devices; the sample and detection stages are documented as their own composed-fixture pages, the controllers that drive these devices are on the Controls page, and the supplies they draw on are in Operations. Each device pairs its human name with the EPICS handle, its key specs, and whether it is field replaceable. new marks a device not yet modeled in CORA; confirm marks a value taken from the docs that staff have not yet verified.

Generated from the descriptor

This page is generated from the descriptor at deployments/pdf/beamline.yaml. Edit the descriptor, not this page. For the CORA Asset model, settings, vendor catalog, drawings, and wiring, see Inventory.

Property	Value
Facility	nsls2
Sector	Sector 28
Tier	Unit
Source	insertion-device (confirm: the source is the shared 28-ID damping wiggler (the high-flux high-energy source PDF and XPD both need); no source PV or parameters are in the profile collection, so the subtype is an inference pending staff confirmation (SRC-1))

Enclosures

Enclosure	Role	Facility	Permit signal
28-ID-1-A	optics-hutch	nsls2	confirm: PSS search-and-secure permit leaf not in source; only the fast shutter (XF:28ID1B-OP{PSh:1-Det:2}) and a photon shutter are exposed, not the front-end PPS leaves (PSS-1)
28-ID-1-B	experiment-hutch	nsls2	confirm: PSS permit leaf unknown; 28-ID-1-B is the PDF / total-scattering endstation carrying the spinner, detector towers, and sample environment (PSS-1)

Source

The shared 28-ID damping-wiggler source feeding the high-energy beam, and the storage-ring readback.

Enclosure: 28-ID-1-A.

Name	Family	PV	Key specs	Replaceable	Status
Source	InsertionDevice		28-ID insertion-device source. No source PV or parameters are in the profile collection; from facility knowledge (not the public config) it is the shared 28-ID damping wiggler, the high-flux high-energy regime PDF needs, an inference pending staff confirmation (SRC-1). The same source feeds the XPD twin.		confirm
StorageRing	StorageRing	SR:OPS-BI{DCCT:1}I:Real-I	Storage-ring current readback (ring_current), an observe-only machine-state signal. Binds the loose StorageRing supply family (never an Asset Family, MACHINE-1).		confirm

Optics

Condition the high-energy beam and set its energy: the side-bounce monochromator, the vertical focusing mirror, and the white-beam slits. PVs verified against startup/12-optics.py and pdftools/motors.py.

Enclosure: 28-ID-1-A.

Name	Family	PV	Key specs	Replaceable	Status
Monochromator	Monochromator	XF:28ID1A-OP{Mono:SBM-Ax:	Side-bounce monochromator (class SideBounceMono, instance sbm): a single-bounce Laue crystal on wedge-mount X / Y, yaw / pitch / roll, and a four-corner bender (inboard / outboard, upper / lower). A high-flux high-energy mono, the PDF counterpart of XPD's bent double-Laue (a Monochromator settings difference, not a new family). The EnergyAxis below is the master energy; crystal cut and range pending (MONO-1).		confirm
VerticalFocusingMirror	Mirror	XF:28ID1A-OP{Mir:VFM-Ax:	Vertical focusing mirror (class Mirror, instance Mirror_VFM): upstream / downstream jacks and an upstream / downstream bender with encoders. Reuses the Mirror family.		confirm
WhiteBeamSlit	Slit	XF:28ID1A-OP{Slt:0-Ax:	White-beam-defining slit (class Slits, instance WB_slits): top / bottom / inboard / outboard blades. A beam-defining slit (BDM_slits, Slt:1) sits on the same module. Reuses the Slit family.		confirm
EnergyAxis	PseudoAxis		The master energy axis set by the side-bounce monochromator. PDF runs at a fixed high energy per experiment; whether energy is ever scanned as the measurement is ENERGY-1.		confirm