Table 1 Acquisition parameters of the scan of case study 1: “Green velvet purse”
From: Beam filtration for object-tailored X-ray CT of multi-material cultural heritage objects
Scan 1 | Scan 2 | Scan 3 | Scan 4 | Scan 5 | Scan 6 | |
|---|---|---|---|---|---|---|
Beam parameters | ||||||
Tube voltage | \({50}\,\hbox {kV}\) | \({50}\,\hbox {kV}\) | \({75}\,\hbox {kV}\) | \({75}\,\hbox {kV}\) | \({75}\,\hbox {kV}\) | \({75}\,\hbox {kV}\) |
Tube current | \({700}\,\upmu {\hbox {A}}\) | \({700}\,\upmu {\hbox {A}}\) | \({200}\,\upmu {\hbox {A}}\) | \({1000}\,\upmu {\hbox {A}}\) | \({1000}\,\upmu {\hbox {A}}\) | \({1000}\,\upmu {\hbox {A}}\) |
Sn \({0.25}\,\hbox {mm}\) | ||||||
Cu \({0.5}\,\hbox {mm}\) | ||||||
Filters | None | Al \({0.5}\,\hbox {mm}\) | None | Cu \({0.5}\,\hbox {mm}\) | Sn \({0.25}\,\hbox {mm}\) | Al \({0.5}\,\hbox {mm}\) |
Camera settings | ||||||
Exposure time | 200 \(\hbox {ms}\) | |||||
Nr. of projections | 2881 | |||||
Nr. of averages | 1 | |||||
Geometry | ||||||
Source-Object-Distance (SOD) | 447 \(\hbox {mm}\) | |||||
Source-Detector-Distance (SDD) | 609 \(\hbox {mm}\) | |||||
Object voxel size | 54.9 \(\upmu \hbox {m}\) | |||||