Patent ID: 7384576
Filing Date: 2008-06-10
Classification: C08K,G21F

Abstract:
1. A mixture for screening radiation, comprising: a) at least 26 wt. % of gadolinium, said gadolinium being in elemental form, as a compound, and/or as an alloy, wherein if the gadolinium is in the form of a compound, then said compound is gadolinium(III) oxide (Gd b) at least 10 wt. % of one or more elements chosen, independently of each other, from the group consisting of indium, tin, molybdenum, niobium, tantalum, zirconium and tungsten, wherein the one or more elements are in elemental form, as a compound, and/or as an alloy and wherein the concentration of tungsten, if tungsten is present, is at least 10 wt. % with respect to the total amount of the mixture.