Experimental systems

We have designed and built a relatively small liquid helium "e-Bubble" test facility, to make the fundamental measurements of a number of key physical and technical parameters of e-Bubble transport in liquid helium needed to find the parameters that allow good spatial and energy resolution on track segments, and to determine the conceptual design of a large liquid helium solar neutrino detector. The test system primarily consists of these sub-systems:
- LHe e-Bubble Test Chamber
- LHe/LN2 Cryostat
- LHe Dewar and LN2 Dewar
- Helium gas container and control
- Vacuum pumping stations, and pumping lines
- Pressure gauges, vacuum gauges and flow meter
- Temperature sensors and heaters
- High voltage (cable and feedthrough) sub-systems
- Electrode structures and radioactive sources
- Electrical readout sub-systems
- Optical measurement sub-systems
- Safety sub-systems (relief valves, oxygen monitor, etc.)