Proof-of-principle of a new mass spectrometric technique for radiocarbon measurement is demonstrated.
Interfering nitrogen and hydrocarbon molecules are largely eliminated in a charge-exchange cell operating on non-metallic gas.
The laboratory is equipped with two modern NEC accelerator mass spectrometers and five available sputter, plasma and microprobe ion sources accommodating solid and gas samples.
Jointly based in the Schools of Chemistry and Arts, BRAMS provides a radiocarbon dating service to both University of Bristol researchers and to external academic and commercial users.
We are home to one of a new generation of ultra-compact AMS instruments, a MICADAS accelerator mass spectrometer, designed and built at ETH, Zurich.
Likewise, other isotopes like beryllium-10 and aluminum-26 divulge how long a sample has been subjected to the constant barrage of cosmic rays that comes with sitting on the surface of Earth—telling geologists, for example, how quickly a region of rock is eroding or how long ago an earthquake brought sediment to the surface.
Carbon-14 also reveals whether a sample of ivory was removed from an animal before or after the 1989 ban on ivory sales.