slow neutron उदाहरण वाक्य

उदाहरण वाक्य

1. A map of slow neutrons shows there is a broad deposit of water around the Martian south pole.
2. This is because U-234 is not fissile, and tends to absorb slow neutrons in a nuclear reactor-becoming U-235.
3. In a GFR reactor design, the unit operates on fast neutrons, no moderator is needed to slow neutrons down.
4. For example, hydrogen-rich materials are often used to shield against neutrons, since ordinary hydrogen both scatters and slows neutrons.
5. Gas, oil, water and sand all have different concentrations of hydrogen atoms which reflect different amounts of slow neutrons.
6. This is because U-234 is not fissile, and tends to absorb slow neutrons in a nuclear reactor becoming U-235.
7. In Ottawa, the delegation also met a Canadian, George Laurence, who had secretly built his own slow neutron experiment.
8. Control rods used to be tipped with graphite, a material that slows neutrons and thus speeds up the chain reaction.
9. Thus, when Mars Odyssey passes over a region containing hydrogen, it sees more slow neutrons and fewer of the faster ones.
10. Therefore, if the primary coolant is removed, there are not enough slow neutrons to sustain the reaction and the core cools.