Sample¶
The TARDIS diffractometer endstation at 23-ID-1. First cut; PVs read from the profile collection, carried confirm.
The CSX sample side is the TARDIS endstation: an in-vacuum 6-circle soft X-ray diffractometer that orients the sample and the scattering geometry, with a sample stage, a holography stage, and a cryostat. They are modelled as sample-stage groups in the descriptor.
The diffractometer circles bind the catalog Goniometer Family and the composed Assembly(Diffractometer) (a third hkl diffractometer after 4-ID and 8-ID, now in vacuum); the sample stage reuses LinearStage and the cryostat TemperatureController. No new family is introduced (see Model).
The TARDIS diffractometer (23-ID-1)¶
| Device | Family | Design spec / note |
|---|---|---|
Diffractometer |
Goniometer |
TARDIS in-vacuum E6C circles theta / delta / gamma + mu; binds the Diffractometer Assembly (DIFF-1) |
ReciprocalSpace |
PseudoAxis |
hkl reciprocal-space layer over the E6C geometry; partition rule is DIFF-2 |
SampleStage |
LinearStage |
sample translation (sx / say / saz) plus the holography sample stage (SAMPLE-1) |
SampleTemperature |
TemperatureController |
Lakeshore 336 cryostat controller (SAMPLE-1) |
TARDIS is driven through hkl in the E6C geometry, the same reciprocal-space machinery as the 4-ID and 8-ID diffractometers, which is why it reuses the Goniometer Family and the Assembly(Diffractometer) rather than earning a new shape. The circle roles are DIFF-1; the inverse-kinematics partition rule is DIFF-2. The fine piezo nanopositioner for sample / lens positioning is present in the config but deferred in this cut.
See Open questions for the diffractometer and sample-environment facts still to confirm, and Inventory for the Asset tree.