The compartment on top is intended for sample placement and radiation containment. The sample must again be closely aligned to the detector sample window to allow for a direct X-ray path into the detector through the prolene window. The lid of the compartment is then closed, allowing for containment of any errant X-rays that do not make it to the detector. A cable is connected from the hXRF to a nearby computer, from which the user can control the triggering and data management screens. Regardless of the deployment mode, instrument conditions such as beam firing times, testing mode, etc. can all be manipulated at will by the user (we kept the settings identical for all data collection in this study).