Detector¶

Spectrometer¶

The six-circle scattering spectrometer arm and its reciprocal-space pseudo-axis, which set the momentum transfer Q.

Enclosure: 10-ID-D.

Note

The spectrometer arm (tth / th / chi / phi) is a six-circle scattering geometry driven by the HKL reciprocal-space pseudo-axis, the 8-ID / 4-ID diffractometer anatomy, so it binds the catalog Goniometer (NOT SIX's energy-dispersive SpectrometerArm, which is a different, dispersive instrument). Whether the arm plus the crystal analyzer compose an Assembly(Diffractometer)-style Fixture is ANALYZER-1; like 8-ID / 4-ID in descriptor mode, the Assembly is named as a follow-on, not materialized here.

Name	Family	PV	Key specs	Replaceable	Status
`Spectrometer`	`Goniometer`	two_theta: `XF:10IDD-OP{Spec:1-Ax:2Th}Mtr` theta: `XF:10IDD-OP{Spec:1-Ax:Th}Mtr` chi: `XF:10IDD-OP{Spec:1-Ax:ChiA}Mtr` phi: `XF:10IDD-OP{Spec:1-Ax:PhiA}Mtr`	six-circle scattering arm; the scattering angle two_theta sets \|Q\|, driven by the reciprocal-space pseudo-axis (ANALYZER-1 for the Assembly question)		`new` `confirm`
`ReciprocalSpace`	`PseudoAxis`	confirm: `HKLPseudoV2 (H, K, L) over the six-circle tth / th / chi / phi via the SixCircle kinematics; SamplePrime sample-frame rotation; the geometry constants are from the legacy SPEC file`	six-circle reciprocal-space pseudo-axis (the Diffractometer reciprocal_space PseudoAxis pattern); the read-only derived angles present a Sensor read-back facet (ENERGY-1)		`new` `confirm`

Analyzer¶

The crystal energy analyzer (a diced multi-crystal Bragg analyzer), its slit, and the per-crystal thermal stabilization.

Enclosure: 10-ID-D.

Note

The energy analyzer is the signature IXS instrument: a diced multi-crystal Bragg analyzer (six diced crystals d1-d6, each with theta + phi orientation and PID temperature stabilization) that Bragg-reflects the scattered beam to select a fixed final energy, focusing energy-selected photons onto the counting detectors. No catalog or loose Family fits this anatomy (it is not the catalog EnergyDispersiveSpectrometer, a per-event point Sensor, nor a Monochromator, an upstream incident optic, nor SIX's dispersive SpectrometerArm), so it is coined as ONE loose Family EnergyAnalyzer at n=1, the Analyzer sibling of the catalog PolarizationAnalyzer (naming-r3-cleared). It is NOT graduated; a second hard crystal-analyzer beamline must independently earn it, and whether EnergyAnalyzer and PolarizationAnalyzer merge into one Analyzer Family is ANALYZER-1. The six diced crystals are carried as settings on the one Asset; the convention for promoting each identity-bearing crystal (own theta / phi + own temperature) to a child Asset is at a rule-of-three gate (XTAL-1).

Name	Family	PV	Key specs	Status
`EnergyAnalyzer`	`EnergyAnalyzer`	coarse_theta: `XF:10IDD-ES{Ez4:1-Ax:1}Mtr` coarse_chi: `XF:10IDD-ES{Ez4:1-Ax:2}Mtr` wide_theta: `XF:10IDD-ES{Ez4:1-Ax:3}Mtr` wide_chi: `XF:10IDD-ES{Ez4:1-Ax:4}Mtr` up_y: `XF:10IDD-OP{Analy:1-Ax:UY}Mtr` down_y: `XF:10IDD-OP{Analy:1-Ax:DY}Mtr`	diced crystal Bragg energy analyzer; six diced crystals d1-d6 (each theta + phi, XF:10IDD-ES{Ez4:2/3/4}) carried as settings; child-Asset-per-crystal is XTAL-1; presents Positioner with Sensor-vs-Positioner a confirm (the SIX SpectrometerArm precedent); the merge with PolarizationAnalyzer is ANALYZER-1	`new` `confirm`
`AnalyzerSlit`	`Slit`	`XF:10IDD-ES{Ez4:5`	analyzer-chamber beam-defining slit (top / bottom / inboard / outboard); OPT-2	`new` `confirm`
`AnalyzerThermalControl`	`TemperatureController`	confirm: `six PID loops XF:10IDD-CT{EPid:01-06}PID.VAL stabilizing the diced crystal temperatures (DxtalTemp)`	per-crystal thermal stabilization for energy stability; presents the Regulator Role (graduated Family reused). Six PID channels modelled as one Asset; six-vs-one Assets and the parent (analyzer vs per-crystal child) are TEMP-1 / XTAL-1	`new` `confirm`

Detection¶

The counting detectors: the quad electrometers reading the energy-analyzed signal and the incident-flux scaler.

Enclosure: 10-ID-D.

Note

IXS detection is point / current-integrating, not imaging: the diced analyzer focuses energy-selected photons onto photodiodes read by quad electrometers, the science detector (the BMM QuadEM-as-primary precedent). These bind the catalog FluxMonitor (Sensor). The scaler I0 channel is the incident-flux monitor, also FluxMonitor. Whether the analyzer-focus photodiode is a separate Photodiode Asset or just an electrometer channel is DET-1 (default: a channel, not a standalone Asset).

Name	Family	PV	Key specs	Replaceable	Status
`AnalyzerElectrometers`	`FluxMonitor`	confirm: `NSLS_EM quad electrometers XF10ID-BI:AH171-175 and XF:10ID-BI:TM176/178 reading the analyzed-beam / drain-current channels; the science point detector (DET-1)`	quad electrometers reading the energy-analyzed scattered signal as a scalar current (the BMM primary-detector precedent); DET-1		`new` `confirm`
`IncidentScaler`	`FluxMonitor`	`XF:10IDD-ES{Sclr:1}`	counting scaler; chan21 = the I0 incident-flux monitor for normalization (DET-1)		`new` `confirm`