The development of a method for the estimation of burnup of nuclear fuels by the determination of236U by high-resolution inductively coupled plasma spectrometry has been demonstrated. Linear calibration curves are obtained and a limit of quantification of ~ 3 atom % burnup established. The precision, in terms of the relative standard deviation (RSD) of the determination, was 3.7% RSD for 1.58 atom % of 236U. These results were obtained by using a spectrometer with a resolving power of 2.3 X 105 and with the application of a spectral deconvolution using a nonlinear curve-fitting algorithm. A complementary method, the determination of 139La, was also investigated and proved to be accurate (recovery = 101.5%) and precise (RSD = 2.2%) with a limit of quantification of ~ 0.5 atom % burnup. These methods were developed with the use of model solutions which approximate digests of irradiated fuels but which contained no active fission product species.
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
Login to access OSA Member Subscription