Luxium Solutions, LLC

Saint-gobain Cristaux & Détecteurs

Other

Crismatec

Damien Pauwels

Bruno Viana

Samuel Blahuta

Eric E Mattmann

Pieter Dorenbos

Carel Wilhelm Eduard Van Eijk

Andree Kahn-Harari

A scintillation compound can include a rare earth silicate. The rare-earth silicate may be lutetium yttrium orthosilicate. The rare-earth silicate may be doped with Ce. The rare-earth silicate doped with Ce may include a rare-earth element in a tetravalent state at a concentration of at least approximately 10 ppm atomic of the scintillation compound.

Scintillation compound including a rare earth element and a process of forming the same

A scintillation compound can include a rare earth element that is in a divalent (RE) or a tetravalent state (RE). The scintillation compound can include another element to allow for better change balance. The other element may be a principal constituent of the scintillation compound or may be a dopant or a co-dopant. In an embodiment, a metal element in a trivalent state (M) may be replaced by REand a metal element in a divalent state (M). In another embodiment, Mmay be replaced by REand M. In a further embodiment, Mmay be replaced by a REand a metal element in a monovalent state (M). The metal element used for electronic charge balance may have a single valance state, rather than a plurality of valence states, to help reduce the likelihood that the valance state would change during formation of the scintillation compound.

A monoclinic single crystal with a lutetium pyrosilicate structure is described. The crystal is formed by crystallization from a congruent molten composition of LU M Si O where LU is lutetium or a lutetium-based alloy which also includes one or more of scandium, ytterbium, indium, lanthanum, and gadolinium; where M is cerium or cerium partially substituted with one or more of the elements of the lanthanide family excluding lutetium; and where x is defined by the limiting level of LU substitution with M in a monoclinic crystal of the lutetium pyrosilicate structure. The LU alloy should contain greater than about 75 weight percent lutetium. The crystals exhibit excellent and reproducible scintillation response to gamma radiation.

Scintillator crystals and their applications and manufacturing process

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Mandelieu, France

Damien Pauwels