Image at left shows the quartz glass sample tree containing individually wrapped samples that can be maneuvered with a magnet. Lower half of image shows a cut-away view of the furnace. A W-Re thermocouple (green) is inserted into a small recess in the bottom of the Ta cucible (red), which is surrounded by the Ta heating element (dark blue).

     Heating Element
     Tantalum heating element

     Tantalum crucible