2.1 Metadata
The scan metadata file document.txt can be quickly parsed using itraxR::itrax_meta(). The output is a dataframe from which the individual components can be easily accessed through subsetting functions; for example as.numeric(itrax_meta()[6:7, 2]) would return a numeric vector of the start and end position of a scan.
## Parameter Value Unit
## 1 Sample name CD166_19_S1 str
## 2 Section name CD166_19_S1 str
## 3 Aquisition date 22/9/2020 dd/mm/yyyy
## 4 Operator name MC str
## 5 Tube Mo element
## 6 Start coordinate 31.5 mm
## 7 Stop coordinate 1314.1 mm
## 8 Step size 1000 microns
## 9 Optical Start 0.5 mm
## 10 Optical End 1401.3 mm
## 11 Optical step size 0.188 mm
## 12 Rad. voltage 55 kV
## 13 Rad. current 50 mA
## 14 Rad. exposure 0 ms
## 15 line camera signal level 323154 at 25 ms
## 16 XRF ON ON/OFF
## 17 XRF voltage 30 kV
## 18 XRF current 30 mA
## 19 XRF exp. time 15 seconds
## 20 Start temperature \xb0C
## 21 Stop temperature \xb0C
## 22 Start humidity %
## 23 Stop humidity %
## 24 Start vacuum -95.0 kPa
## 25 Stop vacuum -94.8 kPa