prompt neutron

短语

词形变化

prompt neutrons 复数 prompt neutrons

释义与例句

n.
  1. 1.

    A neutron produced immediately by the fission of an atomic nucleus, instead of being emitted by decaying fission products seconds to minutes later; over 99% of all fission neutrons are prompt neutrons (the exact portion depends on the nuclide undergoing fission).