<page_title> Operation Sandstone </page_title> <section_title> Operations </section_title> <table> <cell> Yoke <col_header> Name </col_header> <col_header> X-ray </col_header> </cell> <cell> Oralloy core 2.5 kg (5.5 lb) Pu, 5 kg (11 lb) U235. (Hanson says it probably was pure U-235), levitated core. <col_header> Notes </col_header> <row_header> Yoke </row_header> </cell> </table>
The Yoke device used a levitated pure uranium 235 core.