Although it may not present a significant short-term effect, radioactive carbon that is incorporated into the body will remain there and emit radiation for as long as the organism exists, thus increasing the possibility of health problems both for the affected body as well as its offspring.
From Libby’s data, Pauling determined that at the rate that bombs were being tested circa 1958 – which Pauling calculated to be 30 megatons worth of explosions – 74 kg of carbon-14 were released per year.
Explain if the instrument appears to be calibrated based on the data you obtained for the Low Calibration Standard.
The scintillation instrument does appear to be calibrated because the sample was in low standard. Explain if the instrument appears to be calibrated based on the data you obtained for the High Calibration Standard. Explain which would be the best isotope from the Isotope Half-Life Chart to measure a 3 billion year old specimen.
Rubidium isotope would be the best isotope to use for that measurement because it contains the most years that would be needed to measure that span.
Even with the help of this isotope the task would still be rather difficult to make precise.
Calculate the age of the calibration standards using the following information.