A U 235 Regulator is something used to regulate the combustion of U 235 which is a grade of Uranium. Another grade of Uranium can be used as a regulator for U 235. A suggested grade for regulation is U 238.
It is the reverse: Np-235 decay to U-235 by electron capture.
U-235
Example with the istope 235 of uranium: - 235 92U (recommended) or - U-235
Fissionable uranium needs to have a significant ratio of U-235 vs U-238. This is because U-235 is less stable and will react more easily. In other words, more U-235 means a fast reaction, meaning more energy is liberated.
There are many isotopes for uranium, the most abundant of them in nature are:Uranium- 234, having 142 neutron and 92 protonUranium- 235, having 143 neutron and 92 protonUranium- 238, having 146 neutron and 92 protonThe abundance of these three isotopes in natural uranium is:Uranium-234: 0.006 %Uranium-235: 0.720 %Uranium-238: 99.274 %
A U-235 is a radioactive Uranium regulator. This radioactivity was accidentally discovered in 1896 by French physicist Antoine Henri Becquerel.
It is the reverse: Np-235 decay to U-235 by electron capture.
U from uranium235U and 238U (recommended); also possible U-235 and U-238 or uranium-235 and uranium-238.
U-235
uranium
Uranium-235 (U-235).
Depleted Uranium, 0.2% U-235 99.8% U-238: Armor piercing antitank Gatling gun bullets and tank armor plateHighly Enriched Uranium, 93.5% U-235 6.5% U-238: Fission bomb coresReactor Produced Uranium,
Uranium-235 in combination with Uranium-238, enriched from natural levels of about 0.7% U-235 to about 5% U-235. There are other configurations, but this is the most common.
In the fuel, which consists of rods of uranium dioxide containing about 4 percent U-235 when new
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Example with the istope 235 of uranium: - 235 92U (recommended) or - U-235
U-235 is the enriched form of U-238 which is used in fission reactors as the fuel rods.