But experts say there is unlikely to be agreement on converting all nuclear power stations to use low-enriched fuel.
We are continuing research on the feasibility of converting research reactors in the United States and Russia to low-enriched uranium fuel.
He cited the country's production of 20%-enriched fuel as material needed to make medicine for more than 1 million Iranian cancer patients.
Rather than sit down with the six, it may be hoping to revive talks about a separate proposal for Russia, France, America and the IAEA to help it find replacement 20%-enriched fuel for a research reactor in Tehran that supplies medical isotopes.
The HEU Agreements provide for the conversion of approximately 500 metric tons of highly enriched uranium contained in Russian nuclear weapons into low-enriched uranium for use as fuel in commercial nuclear reactors.
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Japan's reactors are almost all fueled by enriched uranium, not plutonium-based fuel.
And France agreed to transform the higher-enriched uranium into metallic nuclear fuel.
The idea was for Iran to ship 1, 200kg of its low-enriched uranium overseas to produce fuel for a research reactor, thus leaving the country for a while with too small a stockpile with which to make a bomb.
The authority has also proposed moving other material called "exotics", which includes fuel containing highly-enriched uranium, from Dounreay to Sellafield at a later date.
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Nuclear reactor fuel is enriched to 3-5% Uranium-235.
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The plan envisages Iran's low-enriched uranium being shipped overseas for processing into fuel.
After Qom, Iran appeared to back off a bit by agreeing in principle to ship abroad much of its uranium stock (a bomb's worth or thereabouts if sufficiently re-enriched) for reworking to provide the needed reactor fuel.
The other is an agreement on a proposal to take Iran's stockpile of low-enriched uranium (LEU) and send it to Russia and France for conversion into fuel rods for use in Iran's small research reactor in Tehran, which produces isotopes for cancer treatment.
Iran's stock of low-enriched uranium is bigger: only about half of it would be needed to produce the equivalent fuel load for the medical reactor.
Reza Khazaneh, a former adviser to the head of Iran's Atomic Energy Organization (IAEO), told the semi-official news agency the tests will be carried out using "dummy" fuel rods without enriched uranium.
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