Sample

The TXM sample stage in 32-ID-C. Design-phase; values are published-doc values carried as confirm.

The sample stage modelled here is the transmission X-ray microscope (TXM) endstation in 32-ID-C: a granite-supported stack carrying the tomographic rotation axis and the zone-plate optics that form the magnified image. It is modelled as one sample-stage group in the descriptor. The published TXM component list mixes pre-APS-U and current hardware, so every device is carried confirm (TXM-1).

Unlike a composed Microscope Assembly, the TXM optics are modelled here as a plain device group: the condenser, zone plate, and phase ring bind to the Condenser, ZonePlate, and PhaseRing catalog Families, which graduated once FXI became a second deployment sharing them.

The model in one picture

The stack, base to sample (containment, Asset.parent_id). The precise sub-order firms with the confirmed mechanical layout (TXM-1); the tree below is the published-layout intent.

32-ID  (Unit, Asset)
└── TXMGranite  (Component, Family Table; granite sample-and-optic support, 32-ID-C)
    ├── Condenser  (Device, Family Condenser; conditions the beam onto the sample)
    ├── TXMRotary  (Device, RotaryStage; tomographic rotation)
    │   └── TXMSamplePositioning  (Device, LinearStage; sample centring, co-rotates)
    ├── ZonePlate  (Device, Family ZonePlate; objective, forms the magnified image)
    └── PhaseRing  (Device, Family PhaseRing; inserted for Zernike phase contrast)

TXM endstation (32-ID-C)

The in-house nano-tomography instrument: a Fresnel zone plate magnifies the transmitted beam onto the detector while the sample rotates. The condenser shapes the beam onto the sample; the phase ring is inserted for phase contrast.

Device	Family	Design spec / note
TXMGranite	Table	granite stage support carrying the TXM sample system and optics
TXMRotary	RotaryStage	tomographic rotation axis; model and encoder unconfirmed (TXM-1)
TXMSamplePositioning	LinearStage	sample centring and alignment stack; axes and travel unconfirmed (TXM-1)
Condenser	Condenser	beam-condensing optic; capillary or condenser zone plate, unconfirmed (OPTICS-1)
ZonePlate	ZonePlate	objective Fresnel zone plate; outermost-zone width and diameter unconfirmed (OPTICS-2)
PhaseRing	PhaseRing	Zernike phase ring; inserted or retracted, details unconfirmed (OPTICS-3)

In-situ environments the published docs anticipate (a furnace, a nano-indenter) are not modelled yet; they join as confirmed equipment, as Fixtures or sample environments once the design firms.

See Open questions for the optics and stage facts still to confirm, and Inventory for the Asset tree.