| 摘要 |
<p>A system and method of transferring a radioactive payload using a shield-gate apparatus, including a method of performing work within a cavity of a shielding container using a shield-gate apparatus and shielding block, in one embodiment, the invention is a system comprising: a shield-gate apparatus comprising a body, a passageway extending along an axis through the body, and one or more movable shielding gates; a shielding block positioned atop the body of the shield-gate apparatus to enclose a first opening of the passageway; and a retaining feature that prevents relative transverse movement between the shielding block and the shield-gate apparatus while allowing relative rotation between the shielding block and the shield-gate apparatus about a central axis of the shielding block.</p> |
