Elizabeth Carter, who will instruct you in all things pertaining to Brook. Coverage ranges from 70 microns to 8 millimeters with the tracer 5i handheld xrf spectrometer of Sydney Analysis Company, which has two main portable xrf instruments for analyzing cultural heritage materials. These instruments are used to analyze elements ranging from sodium to uranium. A map of the element distribution is produced in a dimension of 4.5 using the 2d mapping function, which maps starting from an area of...