Activation Cross Sections for (n, 2n) Reaction on Neodymium, Samarium, Gadolinium and Ytterbium at 14.6 MeV

Abstract

Abstract Activation cross sections for the (n, 2n) reaction on Nd, Sm, Gd and Yb have been measured at 14.6 MeV by using a Ge(Li) γ-ray detector. The following cross sections (mb) have been obtained: 112Nd 1,675±160, 143Nd 1,789±147, 150Nd 1,720±128, 154Sm 2,010±137, 160Gd 2,173±152, 160Yb 2,226 ±152. These (n,2n) cross sections are compared with the theoretical calculations performed by a new model including pre-equilibrium and statistical models. A good agreement between the experimental and calculated cross sections is obtained. KEYWORDS: (n, 2n) cross sectionsneodymium 142neodymium 148neodymium 150samarium 154gadolinium 160ytterbium 176MeV range 10–100Ge(Li) detectorpre-equilibrium modelstatistical modelsnuclear reactionscross sectionscomparative evaluationaccuracy