Because the chamber was designed with all spectroscopies and directed gas dosers on the same level, no z-travel of the crystal is required during an experiment.
A molybdenum crystal was resistance spot-welded to a tantalum loop and attached to a tungsten-rhenium thermocouple.
A pre-pulse to remove the oxide layer prior to the weld pulse, a high frequency direct current inverter using feedback loops to accurately deliver the weld pulse, and an air-actuated weld head to control the force during welding provide for stronger and more consistent welds as well as a significant decrease in time spent performing spot-welds.
