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/xfm/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 4 |
| Tier | Unit |
| Source | bending-magnet (confirm: 4-BM bending-magnet source; not an insertion device. The profile collection exposes only the endstation (the raster stage + detectors), not the source / optics, so those are carried confirm-only (SRC-1, PROFILE-1).) |
Enclosures¶
| Enclosure | Role | Facility | Permit signal |
|---|---|---|---|
4-BM-A |
optics-hutch | nsls2 |
confirm: PSS search-and-secure permit leaf and shutter PVs not in the profile collection (PSS-1, PROFILE-1) |
4-BM-C |
experiment-hutch | nsls2 |
confirm: PSS permit leaf unknown; 4-BM-C (PV zone XF:04BMC) is the endstation carrying the raster stage and the fluorescence detectors. Hutch layout to confirm (PSS-1, ENC-1) |
Source¶
The bending-magnet source and the front-end / photon shutters.
Enclosure: 4-BM-A.
| Name | Family | PV | Key specs | Replaceable | Status |
|---|---|---|---|---|---|
Source |
Beam |
4-BM bending-magnet source, recorded as a PhotonBeam Supply, not an Asset (the 2-BM / BMM precedent). Beam-parameter machine state is on SR:C04. | new confirm |
||
FrontEndShutter |
Shutter |
confirm: front-end safety shutter; PPS-gated. PV not in the profile collection (PSS-1, PROFILE-1) Front-end photon shutter (not exposed in the profile collection). |
confirm |
||
PhotonShutter |
Shutter |
confirm: photon shutter into the optics; PV not in the profile collection (PSS-1, PROFILE-1) Photon shutter gating the beam into the optics (not exposed in the profile collection). |
confirm |
Optics¶
Condition the beam and set its energy: the double-crystal monochromator, the microfocusing optic, and the beam-defining slits. These are not exposed in the profile collection (which carries only the endstation), so they are carried confirm-only with no fabricated PV (PROFILE-1).
Enclosure: 4-BM-A.
| Name | Family | PV | Key specs | Replaceable | Status |
|---|---|---|---|---|---|
Monochromator |
Monochromator |
confirm: the 4-BM double-crystal monochromator (Si(111) is the known 4-BM crystal); the energy actuator for XRF / XANES. PV and crystal set not in the profile collection (DCM-1, PROFILE-1) Double-crystal monochromator selecting the incident energy. Reuses the Monochromator family. Not exposed in the profile collection (DCM-1). |
confirm |
||
FocusingOptic |
Mirror |
confirm: the microfocusing optic (KB mirror pair or capillary) that forms the microprobe spot; type and PV not in the profile collection (OPT-1, PROFILE-1) Beam-focusing optic forming the microprobe. Reuses the Mirror family. Not exposed in the profile collection (OPT-1). |
confirm |
||
BeamDefiningSlit |
Slit |
confirm: beam-defining slit(s) ahead of the focusing optic; PV not in the profile collection (PROFILE-1) Beam-defining slit. Reuses the Slit family. Not exposed in the profile collection. |
confirm |
||
EnergyAxis |
PseudoAxis |
confirm: the master energy axis (the DCM energy); XANES microspectroscopy sweeps it across an edge. PV not in the profile collection (ENERGY-1, PROFILE-1) The master energy axis driving the monochromator. XANES microspectroscopy sweeps it; that energy sweep leans on the deferred energy_scan Capability (ENERGY-1, the BMM question). |
confirm |