1. The created alloy can undergo neutron irradiation to produce transuranic nuclides. 2. Uranium-233 is produced by the neutron irradiation of thorium-232. 3. Polonium-210 was produced by neutron irradiation of bismuth. 4. Glidcop is resistant to degradation by neutron irradiation . 5. Pure plutonium-238 is prepared by reprocessing, or by the neutron irradiation of americium in a reactor. 6. However, in an H-bomb, it is usually created " in situ " by neutron irradiation of lithium-6. 7. Instead, actinium is prepared, in milligram amounts, by the neutron irradiation of 226 in a nuclear reactor. 8. Since then, most neptunium has been and still is produced by neutron irradiation of uranium in nuclear reactors. 9. Instead, the element is prepared, in milligram amounts, by the neutron irradiation of 226 in a nuclear reactor. 10. Prolonged neutron irradiation also produces a long-lived isotope 254 Es ( t 1 / 2 = 275.5 days ).