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/chx/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 11 |
| Tier | Unit |
| Source | insertion-device (confirm: IVU20 in-vacuum undulator (SR:C11-ID:G1{IVU20:1}), verified in source; parameters not fully in the profile collection (SRC-1)) |
Enclosures¶
| Enclosure | Role | Facility | Permit signal |
|---|---|---|---|
11-ID-A |
optics-hutch | nsls2 |
confirm: PSS search-and-secure permit leaf not in source; the shutters are XF:11ID-PPS{Sh:FE} (front end) and XF:11IDA-PPS{PSh} (FOE) (PSS-1) |
11-ID-B |
experiment-hutch | nsls2 |
confirm: PSS permit leaf unknown; 11-ID-B is the endstation hutch carrying the sample, flight path, and detectors (PSS-1) |
Source¶
The in-vacuum undulator source and the front-end shutter.
Enclosure: 11-ID-A.
| Name | Family | PV | Key specs | Replaceable | Status |
|---|---|---|---|---|---|
Source |
InsertionDevice |
SR:C11-ID:G1{IVU20:1} |
IVU20 in-vacuum undulator (instance ivu_gap); gap-driven. Parameters pending (SRC-1). | confirm |
|
FrontEndShutter |
Shutter |
XF:11ID-PPS{Sh:FE} |
Front-end photon shutter (fe_sh); a second FOE shutter foe_sh gates 11-ID-A at XF:11IDA-PPS{PSh}. | confirm |
Optics¶
Condition the coherent beam and set its energy: the silicon double-crystal monochromator, the double-multilayer monochromator for high coherent flux, the horizontal-deflecting mirror, the compound-refractive-lens transfocator, and the pink- and mono-beam slits. PVs verified against startup/10-optics.py and 15-machines.py.
Enclosure: 11-ID-A.
| Name | Family | PV | Key specs | Replaceable | Status |
|---|---|---|---|---|---|
Monochromator |
Monochromator |
XF:11IDA-OP{Mono:DCM-Ax: |
Silicon double-crystal monochromator (dcm, class DCM; axes Energy/B/R/X/FP/P). The production energy routine defaults to the Si(111) crystal at harmonic 5 (move_E xtal=Si111cryo), read from source; the cryo detail and full range are pending (DCM-1). The EnergyAxis below is the master energy. | confirm |
|
MultilayerMonochromator |
Monochromator |
XF:11IDA-OP{Mono:DMM-Ax: |
Double-multilayer monochromator (dmm, class DMM): a wider-bandpass alternative to the Si DCM giving higher coherent flux for XPCS. Coating and bandwidth pending (DCM-1); reuses the Monochromator family. | confirm |
|
HorizontalMirror |
Mirror |
XF:11IDA-OP{Mir:HDM-Ax: |
Horizontal-deflecting focusing mirror (hdm, class HorizontalDiffractionMirror); pitch on a separate read/write PV pair. | confirm |
|
Transfocator |
Transfocator |
XF:11IDA-OP{Lens: |
Compound-refractive-lens transfocator (tran, class Transfocator) focusing the coherent beam. Reuses the graduated Transfocator catalog Family (a CRL focusing optic, also bound at 4-ID/8-ID/9-ID/i22). Lens material and count pending (CRL-1). | confirm |
|
PinkBeamSlit |
Slit |
XF:11IDA-OP{Slt:PB-Ax: |
Pink-beam-defining slit (pbs, class MotorSlits). | confirm |
|
MonoBeamSlit |
Slit |
XF:11IDA-OP{Slt:MB-Ax: |
Mono-beam slit (mbs, class VirtualMotorSlits) defining the coherence-matched beam. | confirm |
|
EnergyAxis |
PseudoAxis |
The DCM energy axis (dcm.en, -Ax:Energy}Mtr), which sets the Bragg angle (dcm.b); modelled as the master energy PseudoAxis. CHX runs mostly fixed-energy; anomalous XPCS sweeps it across an edge. Whether energy is ever scanned as the measurement is ENERGY-1. | confirm |
||
BeamPositionMonitor |
BeamPositionMonitor |
XF:11IDA-BI{Bpm:1-Ax: |
Beam-position monitor bpm1 (XF:11IDA-BI{Bpm:1}); a second monitor bpm2 sits on the endstation branch (XF:11IDB-BI{BPM:2}, note the capitalization) and the AH401B electrometer (elm, XF:11IDA-BI{AH401B}AH401B:) reads diode currents. Binds the loose BeamPositionMonitor family that 4-ID/8-ID/9-ID also use (held; DIAG-1), matching the catalog note that position monitors stay loose. Channel map pending (DIAG-1). | confirm |