Christy pit

短语

词形变化

Christy pits 复数 Christy pits

释义与例句

n.
  1. 1.

    An early design of pit (core of an implosion-type nuclear weapon), used in the detonation over Nagasaki, Japan, in August 1945.

    The principal insight behind the Christy pit was that a solid, subcritical core of plutonium could be compressed to criticality.

    2017, Demon core, entry in Benjamin C. Garrett, Historical Dictionary of Nuclear, Biological, and Chemical Warfare, Bowman & Littlefield, 2nd Edition, page 90, Nickname given to the Christy pit because of its association with two fatalities during hands-on Dragon Experiments; it replaced “Rufus,” an earlier nickname. The Christy pit, a solid sphere of plutonium-239, was initially fabricated as two hemispheres of an alloy of plutonium and gallium.

词源

Named after Canadian-American physicist Robert F. Christy, who worked on the Manhattan Project to produce the first nuclear weapons.

来源：wiktionary