XRF is a prevalent means of non-destructive elemental analysis in archaeology, and a few universities have archaeological XRF laboratories. We are fundamentally different.
The Yale Archaeological XRF ExoLab (YAXX) is not a laboratory in the traditional sense. That is, our XRF instruments are not restricted to a particular room on campus. Instead, we use portable XRF instruments that can analyze artifacts or other objects in our archaeological labs, across campus at the Peabody Museum or Yale University Art Gallery, on a mountainside, or in an archaeological field house on the opposite side of the world. We work outside (“exo-”) the lab – hence, an “exolab.”
More information: http://archsci.yale.edu/xrf