USE OF A MIXTURE ON THE BASIS OF ERBIUM AND PRASEODYM AS A RADIATION ATTENUATING COMPOSITION, RADIATION ATTENUATING MATERIAL AND PROTECTION DEVICE AGAINST IONISATING RADIATION CONTAINING SUCH COMPOSITION

摘要

The invention relates to the use of a mixture comprising erbium and praseodymium as a radiation attenuating composition, i.e. as a composition that can attenuate ionising radiation, in particular X- and gamma-type electromagnetic radiation. The invention also relates to a radiation attenuating material comprising an erbium- and praseodymium-based composition, as well as a protective article which provides group or individual protection against ionising radiation and comprises said material. The invention is suitable for use in nuclear medicine (scintigraphy, radiotherapy, etc.) radiology, medical imaging, the nuclear industry, etc.