Additional file 5: Table S2. of Identification of brassinosteroid genes in Brachypodium distachyon

Primers used in the research. (DOCX 14 kb

Analysis of erbium diffusion in zirconium niobium alloys using neutron imaging and laser induced breakdown spectroscopy

Due to its high neutron absorption, Erbium can be incorporated as a burnable poison in a proposed three layered fuel cladding made of zirconium alloys. Control of Er diffusion between the different layers is important to ensure mechanical and corrosion performance. Here, diffusion coefficients of Er in a Zr al loy and pure Nb at 1000 C were determined using neutron imaging NI and laser induced breakdown spectroscopy LIBS . In Zr 20 Nb, values of D were found using NI and LIBS, respectively, sampling very different volumes of material. The diffusion coefficient of Er in Nb measured by NI, D 2.6 0.07 x10 16 m2.s 1 , is more than two orders of magnitude smaller than in Zr20 Nb wt. , as measured by NI, D 4.59 0.02 x10 14 m2.s 1 , and LIBS, D 4.8 0.5 x10 14 m 2.s 1 . The spatial resolution of NI revealed that diffusion of Er occurred by the growth of a layer of 12 Er concentration from the Er Zr20 Nb surface. These results show that NI is an adequate technique to study the diffusion of Er or other burnable poisons in nuclear fuel claddin