A radioactive element of the actinide series of metals. It has an atomic symbol Th, atomic number 90, and atomic weight 232.04. It is used as fuel in nuclear reactors to produce fissionable uranium isotopes. Because of its radioopacity, various thorium compounds are used to facilitate visualization in roentgenography.
    

concept

Hepato-lienography, and the use and dangers of 'Thorotrast' in various diseases

Quelques essais thérapeutiques du bromure de mésothorium / par Alexandre Guillaume.

Les métamorphoses de Tho-Radia : Paris-Vichy / Thierry Lefebvre, Cécile Raynal.

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Thorium

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Hepato-lienography, and the use and dangers of 'Thorotrast' in various diseases

Quelques essais thérapeutiques du bromure de mésothorium / par Alexandre Guillaume.

Les métamorphoses de Tho-Radia : Paris-Vichy / Thierry Lefebvre, Cécile Raynal.