R. Durak et Y. Sahin, MEASUREMENT OF K-SHELL FLUORESCENCE YIELDS FOR BA, CE, ND, GD, DY, ERAND YB USING RADIOISOTOPE XRF, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 124(1), 1997, pp. 1-4
K-shell fluorescence yields were measured for Ba, Ce, Nd, Gd, Dy, Er a
nd Yb by using a Ge(Li) detector employing the reflection geometry. Th
e target atoms were excited by 122 keV gamma-rays from Co-57 radioacti
ve source of strength 100 mCi. The experimental results are compared w
ith the literature experimental values, theoretical predictions and th
e semiempirical fits.