Gd

1. Introduce – Gadolinium is a lanthanide rare earth element with atomic number 64 and symbol Gd; it is a silvery-white, malleable metal that exhibits unique nuclear and magnetic properties. – In the nuclear and advanced materials industries, gadolinium is commonly known as a premier “neutron absorber” and a core component for “magnetic refrigeration.” – Due to its exceptionally high thermal neutron absorption cross section and high spin state with 7 unpaired electrons, it plays an irreplaceable role in nuclear reactor safety control and biomedical ima...