Direct Measurement of Plutonium in Spent Fuel with X-ray Fluoresence

Determination of plutonium in spent nuclear fuel using high resolution X-ray

“…Specifically, self-induced (passive) XRF, in which U and Pu characteristic K Xrays are generated due to the inherent gamma flux in the sample, has been used to determine the U/Pu elemental ratio and an estimate of Pu mass [3][4][5]. Long counting times (> 1 h) are one potential limitation of this approach [6].…”