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With thorium, it is possible to breed using a thermal reactor.
Natural uranium is only 0.7% uranium-235, the isotope necessary for thermal reactors.
Starts to build 30-megawatt thermal reactor that can produce plutonium for one bomb a year.
Thus, even mass isotopes tend to accumulate, especially in a thermal reactor.
In a thermal reactor, much of it will therefore be converted to berkelium-250 which quickly decays to californium-250.
Thermal reactors require less of the expensive fissile fuel to start.
However, Pu-242's low cross section means that relatively little of it will be transmuted during one cycle in a thermal reactor.
Overall, fast reactors are less common than thermal reactors in most applications.
However, the neutron capture cross section of U is low, and this process does not happen quickly in a thermal reactor.
We were only involved in the design and construction of the photovoltaic array and thermal reactor.
It is used in the thermal reactor, and its concentration in natural uranium does not exceed 0.72%.
Thermal reactors generally depend on refined and enriched uranium.
For the transmutation, both fast and thermal reactors are considered along with dedicated actinide burning facilities.
Pu-241 accounts for a significant proportion of fissions in thermal reactor fuel that has been used for some time.
This is done in the "thermal reactor" chamber where the exhaust manifold would normally be on a conventional engine.
All commercial reactors are thermal reactors, using a moderator to slow down the neutrons.
The prompt temperature coefficient of most thermal reactors is negative, owing to a nuclear Doppler effect.
Patent application [2]: Method and thermal reactor for creating particles.
This means that fast reactors can produce 60 times more energy than conventional thermal reactors for a similar amount of uranium fuel.
That means it uses a nuclear thermal reactor to heat an indigenous propellant gas as a reaction mass. '
On the other hand conventional thermal reactors normally have a higher net yield of plutonium from the fuel cycle (see figures 13 and 14).
In a normal thermal reactor, it has a very low fission product yield; thus, this isotope is not a significant contributor to nuclear waste.
As few as 2 groups can be sufficient for some thermal reactor problems, but fast reactor calculations may require many more.
Electric utilities, in a rare display of opposition to a Government policy, revolted against the so-called advanced thermal reactor, saying it would be too expensive.
A 'thermal reactor' uses slow or thermal neutrons.