1. The stable fission product 149 Sm is also a neutron poison . 2. Many of these are neutron absorbers, called neutron poisons in this context. 3. Control rods that are made of a neutron poison are used to absorb neutrons. 4. Samarium-149 is the second most important neutron poison in nuclear reactor physics. 5. Norman Hilberry suspected a neutron poison was responsible. 6. During SCRAM the operators can inject solutions containing neutron poisons directly into the reactor coolant. 7. For this reason many designs use highly enriched uranium but incorporate burnable neutron poison in the fuel rods. 8. I can understand how the neutron poisons and neutron moderators slow down and speed up the fission process. 9. Nuclides which have a large absorption cross section are neutron poisons if they are neither fissile nor undergo decay. 10. Buildup of stable or long-lived neutron poisons is called "'reactor slagging " '.
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