[sup.14]C Background levels in an
accelerator mass spectrometry system.
(8) The advent of
accelerator mass spectrometry, as discussed in Sec.
To calibrate the [[blank].sup.14]C/[[blank].sup.13]C readings from tandem
accelerator mass spectrometry (TAMS), we used samples from all of our Pectocarya accessions with known age (21 samples, 1988-1995) supplemented for the earlier years with seeds of Plantago (7 samples, 1983-1988).
Accelerator mass spectrometry in biomedical research.
Accelerator mass spectrometry for measurement of long-lived radioisotopes.
Next, the graphite took a trip to a Swiss research facility where scientists analyzed it by
accelerator mass spectrometry, which precisely compared the relative amounts of radioactive and stable carbon isotopes.
Using LLNL's Center for
Accelerator Mass Spectrometry, Buchholz measured the amount of carbon 14 in DNA in beta cells and discovered that after age 30, the body does not create any new beta cells, thus decreasing the capacity to produce insulin as a person ages.
An AMS (
Accelerator Mass Spectrometry) date on the ash deposit obtained from the Beta Analytic Inc., Miami, Florida place the site within Circa Cal.
Using the Lab's Center for
Accelerator Mass Spectrometry, they carbon dated the deposits in the sediment and reconstructed fire occurrences from 15,000 B.C.