Shielded radioactive storage device

A shielded radioactive storage device comprising:

• a hollow body having an upper wall, a bottom wall, and at least one side wall defining an interior cavity;
• a first well positioned within the interior cavity and including a first well casing having a first well casing bottom and a first well casing side defining a first well cavity having a first well opening defined as a first aperture formed in the upper wall of the hollow body, the first well cavity and first well opening sized to receive a radioactive payload;
• a second well positioned within the interior cavity and including a second well casing having a second well casing bottom and a second well casing side defining a second well cavity having a second well opening defined as a second aperture formed in the upper wall of the hollow body, the second well cavity and second well opening sized to receive a second radioactive payload;
• a shield casing having a shield casing bottom and a shield casing side extending around and spaced apart from the first and second well casing bottoms and the first and second well casing sides to form a shielding cavity between the shield casing and the first and second well casings;
• and
• radiation shielding material filling the shielding cavity to surround the first and second well casing sides and first and second well casing bottoms.