material_xray_constants — TOMOGRAPHY `spectral_xray` op

• Data kinds: none → table (an op determined by its arguments alone — it takes no image or data input)

• Call: import fullseye as fs; fs.ledger.material_xray_constants(material='CU', energy_kev: 'float' = 8.0, density_g_cm3=None) -> 'dict' (to call the implementation directly, import materials; materials.material_xray_constants(material='CU', energy_kev: 'float' = 8.0, density_g_cm3=None) -> 'dict'; from the registry, opstomography.get("material_xray_constants"))

Usage

Return the X-ray constants at one energy (μ/ρ, μ_en/ρ, μ, half-value layer, mean free path) with their source.

> The detailed description below is the original text — the summary and the headings are translated.

返り値: dict(name, energy_kev, mu_rho_cm2_g, mu_en_rho_cm2_g, density_g_cm3, mu_per_cm, hvl_mm = 10·ln 2/μ, mfp_mm = 10/μ, edges(±20 % の範囲にある吸収端の (元素, 端, keV)), kind, reference)。単色 X 線の半価層は ln 2/μ そのもの(多色の線質の半価層は dualxray.xray_beam_quality)。

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• poc_dual_energy_xray — py -3.11 examples/poc_dual_energy_xray.py

Ops the type connects to (they accept `table` as input)

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Same category (`spectral_xray`)

material_xray_table · material_xray_attenuation · material_effective_z · xray_tube_spectrum · xray_beam_quality · photon_counting_channels · dual_kvp_channels · xray_channel_projection

*Provenance: materials.py — TOMOGRAPHY operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

material_xray_constants — TOMOGRAPHY spectral_xray op