Alphachron
GeoHistory Facility
- Manufacturer: Australian Scientific Instruments
- Model: Alphachron
- Year: 2012
- Building: 312
- Room: 116
This instrument is designed specifically to extract and analyse gasses in solid samples, predominantly helium.
- High vacuum system consisting of dry diaphragm fore pump, hybrid turbo pump with controller, and ion pump with controller;
- Quadrople mass spectrometer (QMS);
- Range of mass magnitude: 1-100 amu;
- Detector: Faraday/passage multiplier;
- Detection limit: < 2×10-11 mbar;
- Sensitivity of Ar: > 5×10-4/200A/mbar;
- Stainless steel high-vacuum line with automatic and manual valves;
- 3×3.3 litre stainless steel tanks with 3He spike, an analytical 4He standard, and a 4He reference standard;
- Solenoid system and control panel for automatic valve control
- Alphachron system software/drivers for laser automation, gas handling and measurement of radiogenic helium.
Contact: Noreen Evans