Abstract
We introduced gamma ray analysis system in order to measure recent sedimentation rates by 210Pb method and to obtain dose rates of quartz grains in sediments for optically stimulated luminescence (OSL) dating. Because both 210Pb method and OSL dating require precisional values of the radionuclide concentrations, we compared 210Pb and 214Pb concentrations determined by MCA emulation software of the system, Covell's method and curve fitting method, respectively. 210Pb concentrations in some samples determined by the MCA emulation software showed higher values to compare with other methods. The cause would be in an automatic definition of the baseline by the software during the calculation of the net area of 210Pb peaks.
