bombard

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bom·bard

(bom-bard'),
To expose a substance to particulate or electromagnetic radiations for the purpose of making it radioactive.
[Mediev. L. bombarda, artillery assault, fr. bombus, a booming sound]

bombard

[bombärd′]
to shower a drug or tissue sample with radioactive particles from a nuclear isotope source.

bombard

Military
To attack an enemy’s “soft targets”—undefended objects, houses, public buildings—with concentrated artillery with the intent of demoralising civilians and having them pressure their leaders into surrender. Initially defined as use of land-based heavy guns, bombardment has evolved into an equivalent of aerial bombing with the advent of military aviation.
 
Radiation physics
To expose a material to a beam of ionising radiation or highly charged particles.
References in periodicals archive ?
Meanwhile, in Dubna, Russia, researchers have experiments under way to produce an isotope of element 110 with a mass of 273 by bombarding plutonium with sulfur.
Nonetheless, despite the great affinity of sulfuric acid for water, a significant fraction of the bombarding molecules of heavy water bounce off instead of sticking.
After bombarding the excited molecules with hydrogen atoms, the Stanford chemists immediately confirm which product they produced by scanning their reaction chamber with an ultraviolet laser, which causes each product of the water-splitting reaction to emit a charateristic fluorescent "signature.
separately report bombarding thin films of an yttrium-barium-copper-oxide superconductor with neutrons and protons, respectively.
Does rapidly cooling a liquid to form a glass produce the same kind of disorder as that produced by bombarding the crystal form of the same substance with ions?