China Ballistic Missiles and Nuclear Arms Thread

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Hendrik_2000

Lieutenant General
The military reactors needs uranium as well, and practical the to keep the HE stream separated from the civilian stuff,, but this is NOT the key element of the bomb making.

Any civilian enrichment plant can be used to make HE uranium.

The critical in the chain us the Pu making, and that needs REACTOR.

Graphite reactor is one of the oldest technology you can get It is not massive building They can be hidden anywhere. I am not sure if anybody still use it
Fast breeder is better alternative
It is also generated in "commercial" nuclear reactor. The inspection apply only to the imported design. Since China did sign the nuclear nonproliferation.But it DOES NOT apply to domestic design produced with domestic source uranium

Plutonium-239 present in reactor fuel can absorb neutrons and fission just as uranium-235 can. Since plutonium-239 is constantly being created in the reactor core during operation, the use of plutonium-239 as nuclear fuel in power plants can occur without
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; the plutonium-239 is fissioned in the same fuel rods in which it is produced. Fissioning of plutonium-239 provides about one-third of the total energy produced in a typical commercial nuclear power plant. Reactor fuel would accumulate much more than 0.8% plutonium-239 during its service life if some plutonium-239 were not constantly being “burned off” by fissioning.

A small percentage of plutonium-239 can be deliberately added to fresh nuclear fuel. Such fuel is called
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, as it contains a mixture of uranium oxide (UO2) and plutonium oxide (PuO). The addition of plutonium-239 reduces or eliminates the need to
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in the fuel.

The treaty defines
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as those that have built and tested a nuclear explosive device before 1 January 1967; these are the
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,
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, the
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,
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, and
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. Four other states are known or believed to possess nuclear weapons:
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,
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, and
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have openly tested and declared that they possess nuclear weapons, while
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is
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regarding
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.

The NPT is often seen to be based on a central bargain:

the NPT non-nuclear-weapon states agree never to acquire nuclear weapons and the NPT nuclear-weapon states in exchange agree to share the benefits of peaceful nuclear technology and to pursue nuclear disarmament aimed at the ultimate elimination of their nuclear arsenals.
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Anlsvrthng

Captain
Registered Member
Graphite reactor is one of the oldest technology you can get It is not massive building They can be hidden anywhere. I am not sure if anybody still use it
Fast breeder is better alternative
It is also generated in "commercial" nuclear reactor. The inspection apply only to the imported design. Since China did sign the nuclear nonproliferation.But it DOES NOT apply to domestic design produced with domestic source uranium
It is as difficult to hide a breeder reactor like hide a working flamethrower on the battlefield.

To make one ton of Pu239 per year you need 3 MW of thermal output reactor.

To mask this big thermal source is like try to hide an elephant in a living room.



The used technology is not important, it can be fast or slow, but the fast needs more fissionable material (several times) than the moderated ( thermal) one.
So no one is preferring it, only if there is a restricted supply of enriched uranium.
 

Hyperwarp

Captain
According to fissilematerials.org China has close to 3T of military-grade Plutonium. How many warheads is this sufficient for?
 

Hendrik_2000

Lieutenant General
It is as difficult to hide a breeder reactor like hide a working flamethrower on the battlefield.

To make one ton of Pu239 per year you need 3 MW of thermal output reactor.

To mask this big thermal source is like try to hide an elephant in a living room.

The used technology is not important, it can be fast or slow, but the fast needs more fissionable material (several times) than the moderated ( thermal) one.
So no one is preferring it, only if there is a restricted supply of enriched uranium.

What 3MW is nothing look at this 3MW generator just to give you the size.
upload_2018-7-14_14-56-54.jpeg

I don't believe anybody use graphite reactor anymore .It is prone to accident You must read an old reference

Accidents[
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]

There have been several major
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in graphite moderated reactors, with the
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and the
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probably the best known.

In the Windscale fire, an untested annealing process for the graphite was used, and that contributed to the accident – however it was the uranium fuel rather than the graphite in the reactor that caught fire. The only graphite moderator damage was found to be localized around burning fuel elements.
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In the Chernobyl disaster the graphite was a contributing factor to the cause of the accident. Due to overheating from lack of adequate cooling the fuel rods began to deteriorate. After the
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(AZ5) button was pressed to shut down the reactor, the control rods jammed in the middle of the core causing a positive loop since the nuclear fuel reacted to graphite. This is what has been dubbed the "final trigger" of events before the rupture.
A graphite fire after the main event contributed to the spread of radioactive material. The massive power excursion in Chernobyl during a mishandled test led to the rupture of the reactor vessel and a series of steam explosions, which destroyed the reactor building. Now exposed to both air and the heat from the reactor core, the graphite moderator in the reactor core caught fire, and this fire sent a plume of highly radioactive fallout into the atmosphere and over an extensive geographical area.
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In addition, the French
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and the Spanish
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– both
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graphite-moderated
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reactors – suffered major accidents. Particularly noteworthy is a partial core meltdown on 17. October 1969
and an heat excursion during graphite annealing on 13. March 1980 in Saint-Laurent, which were both classified as
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4. The Vandellòs NPP was damaged on 19. October 1989, and a repair was considered not economic.
 

Anlsvrthng

Captain
Registered Member
what is GWt ?
Gigawatt thermal output.

GWe = Gigawatt electric output.
New commercial reactors has 1 GWe electrical output , and 3 GWt thermal output.(aprox, it depends on the thermal efficiency, but the pressurised water ones can not go above around 33% efficiency.)

The military ones not making any electricity , they just dump the energy into the surrounding.
 

antiterror13

Brigadier
Gigawatt thermal output.

GWe = Gigawatt electric output.
New commercial reactors has 1 GWe electrical output , and 3 GWt thermal output.(aprox, it depends on the thermal efficiency, but the pressurised water ones can not go above around 33% efficiency.)

The military ones not making any electricity , they just dump the energy into the surrounding.

thanks. When they dump the energy ... definitely it can be converted to electricity ... why would you waste it ?
 

Anlsvrthng

Captain
Registered Member
thanks. When they dump the energy ... definitely it can be converted to electricity ... why would you waste it ?
That making the reactor design more complicated, needs generators, condensers, transformers, transmission line ect.

And if the job of the reactor is to make plutonium ( and tritium) then it will be stopped periodically , as demanded by the military not as demanded by the electrical network.

I think it is safe to say if the reactor can be used to make electricity then the cost of it will be double/triple of the pure Pu making one.
 
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