Advantages of AMS Radiocarbon Dating over Radiometric Analysis by LSC:(a) small sample size needed (as little as 20 mg) thus it is recommended for radiocarbon dating of blood particles, grains, seeds, small artifacts, or very expensive or rare materials;(b) takes less time than radiometric method (less than 24 hours);(c) higher precision than radiometric techniques.AMS dating is an advanced method compared to radiometric analysis using liquid scintillation counters (LSC). Samples submitted for radiometric dating will be reported as Radiometric PLUS, which combines large sample handling techniques with particle detection.Precision for AMS carbon dating results will be better than radiometric dating (LSC) analysis for samples that are more than 10,000 years old.Precision of results with Beta Analytic’s AMS dating and Radiometric PLUS service is the same.The Greeks consider the first Olympic Games as the beginning or 776 BC.The Muslims count the Prophet’s departure from Mecca, or the Hegira, as their beginning at AD 662.Choosing the best method for radiocarbon dating depends on the quantity of available sample or, in the case of expensive materials, how much of it you can afford to be destroyed.
Together with stratigraphic principles, radiometric dating methods are used in geochronology to establish the geological time scale.There are about two dozen decay pairs used for dating.Uranium 235 decay to lead has a half-life of 713 million years, so it is well suited to dating the universe.Radiometric dating is the method for establishing the age of objects by measuring the levels of radioisotopes in the sample. It decays to nitrogen 14 with a half life of 5730 years. Carbon 14 is created by cosmic rays in the upper atmosphere.