Detector¶
The Eiger on the two-theta arm, plus a second translation and the incident-flux monitor. Design-phase; values are reverse-engineered from dodal or inferred.
I15-1's detection is the total-scattering shape: a large area detector capturing wide-Q scattering across the two-theta arm, plus an incident-flux monitor for normalization. They are modelled in the detection stage of the descriptor.
The detectors and flux monitor¶
| Device | Family | Role | Control handle | Notes |
|---|---|---|---|---|
Eiger |
Camera |
Detector | BL15I-EA-EIGER-01: |
Dectris Eiger area detector, capturing wide-Q total-scattering frames |
Detector2 |
LinearStage |
Positioner | BL15I-EA-DET-02: |
a second detector translation (y / z) |
I0 |
FluxMonitor |
Sensor | BL15I-EA-JBPM-03: |
incident-flux monitor (TetrAMM JBPM) for normalization |
How each maps onto CORA¶
- The Eiger reuses
Camera. A pixel-array area detector is the Camera Family presenting the Detector Role. The two-theta arm it rides (TwoTheta, aRotaryStage) is on the Sample page; the arm geometry and the Eiger threshold / beam-center are calibration dodal does not carry (DET-1). - The flux monitor reuses
FluxMonitor. A TetrAMM ion-chamber readout presenting the Sensor Role, the same shape I22 uses for its i0 / it. This deployment completed the rule-of-three (i22/i03/i15-1) that graduatedFluxMonitorinto the catalog (FLUX-1).
Families¶
The Eiger reuses Camera, the second detector translation reuses LinearStage, and the flux monitor reuses the now-graduated FluxMonitor. No new Family is coined on the detector side. See Inventory for the Asset tree and Open questions for the calibration still to confirm.