RML has advanced capabilities to undertake sampling in the marine environment, to prepare and to measure the relevant radioisotopes in the laboratories.
- Underground Laboratory
- Training center
- XRF System
- Alpha spectrometry
- Liquid Scintillation
- Other Facilities
Liquid scintillation is a versatile technique that permits to measure with high efficiency and relatively low background alpha and beta emitting radionuclides. At RML we use 2 Wallac 1220 Quantulus, ultra-low liquid scintillation counting systems, one of which is in the CAVE underground laboratory. The Quantulus achieves ultra-low background levels by both passive and active forms of shielding (asymmetric lead shield and a liquid scintillation guard), and coincidence counting. The Pulse Shape Analyser allows simultaneous acquisition of pure alpha and beta spectra from a sample.
Applications of liquid scintillation include:
- 226Ra in small sediment samples for 210Pb dating.
- 222Rn in seawater for Submarine Groundwater Discharge studies
- Some anthropogenic radionuclides in the marine environment (3H, 241Pu).