These metal discs are then mounted on a target wheel so they can be analyzed in sequence. AMS, on the other hand, does not rely on radioactive decay to detect the 14 C. Journal of Biomedical Science. The latter type of detector can measure both the total energy of the incoming ion, and also the rate at which it slows down as it passes through the gas-filled detector. These are then accelerated down the second half of the tandem accelerator reaching energies of about 8MeV.
Accelerator mass spectrometry AMS is a form of mass spectrometry that accelerates ions to extraordinarily high kinetic energies before mass analysis.
Accelerator Mass Spectrometry
Sample sizes are thus typically times smaller allowing a much greater choice of samples and enabling very selective chemical pre-treatment. Mass spectrometers detect atoms of specific elements according to their atomic weights. The first magnet is used in the same way as the magnet in an ordinary mass spectrometer to select ions of mass 14 this will include large number of 12 CH 2- and 13 CH - ions and a very few 14 C - ions. Due to the sensitivity of accelerator mass spectrometers, carbon dating small particles like blood particles, a grain, or a seed have been made possible. A nuclear particle accelerator consists essentially of two linear accelerators joined end-to-end, with the join section called the terminal charged to a very high positive potential 3 million volts or higher. In mass analysis, a magnetic field is applied to these moving charged particles, which causes the particles to deflect from the path they are traveling.