Age dating contamination validating data in vb
Most laboratories prefer to receive samples larger than 1 mg to allow some loss in cleaning and to have additional material available if needed.
Modern radiocarbon dating by AMS is a complex process with numerous potential sources of contamination requiring characterization.
Thus, measurement of the radiocarbon concentration can give the time that the organism died.
Early measurements were done by counting the beta particles (high energy electrons) liberated in radiocarbon decay.
This technique has indeed allowed use of much smaller samples and has become the dominant method of radiocarbon dating.
Once an organism dies, its carbon ceases exchanging with atmospheric carbon but continues decaying with a half-life of about 5730 years.The ICR (Institute for Creation Research) recently spent eight years on a project known as RATE (Radioisotopes and the Age of The Earth).The RATE team claims the results have yielded convincing and irrefutable scientific evidence of a young earth.The maximum allowed sample size is typically about 10 mg of carbon.Larger samples produce excessive CO pressure in the sealed tubes used in the process, causing tubes to explode and samples to be lost.
Most radiocarbon AMS laboratories process samples using a variant of the method described by Vogel , with apparatus and processes typically optimized for samples containing about 1 mg of carbon.