IAEA Report Highlights Inconsistencies in Iranian Statements about Its Nuclear Programs

By Kerr, Paul | Arms Control Today, September 2003 | Go to article overview

IAEA Report Highlights Inconsistencies in Iranian Statements about Its Nuclear Programs


Kerr, Paul, Arms Control Today


ON AUGUST 26, the International Atomic Energy Agency (IAEA) released a report saying that "there remain a number of important outstanding issues," about Tehran's nuclear programs that require "urgent resolution." The report updates the agency's Iran investigation, presents new information about Iran's nuclear activities, and reveals some inconsistencies in information Iran had previously provided to the IAEA about these programs. The agency will continue to investigate the unresolved issues about Iran's nuclear activities, the report says.

Uranium Enrichment

Gas Centrifuges

One of the most important portions of the report concerns Iran's gas centrifuge uranium-enrichment program. Washington publicly confirmed in December that Iran has a uranium-enrichment facility at the Iranian town of Natanz. Uranium enrichment can produce fissile material for nuclear weapons, but it also has civilian energy applications.

Iran has made substantial progress on the facility. By February, Iran had installed more than 100 centrifuges at the Natanz facility's pilot plant, but Tehran says it plans to install more than 1,000 by the end of 2003. A commercial plant also located at the site is expected to contain enough centrifuges to produce the equivalent of 25-nuclear bombs worth of fissile material each year.

The centrifuge technology's origin is unclear. A French report presented at the May meeting of the Nuclear Suppliers Group asserted that the technology is likely of Pakistani origin, but the August 26 IAEA report says the machines are of "an early European design."

The advanced state of the pilot facility has raised questions about whether Iran has tested centrifuges with nuclear material. The existence of the facility does not in itself violate Iran's safeguards agreement, but testing centrifuges with nuclear material without declaring such tests to the IAEA would do so.

Tehran clams it used simulations to test the centrifuges without nuclear material. The report, however, dismisses this explanation and states that environmental samples taken at Natanz by agency inspectors in March and June "revealed particles of high [sic] enriched uranium." Agency inspectors use sampling to determine if nuclear materials are present in a given location-a possible indication of past nuclear activity.

Iran had not declared that it possesses highly enriched uranium. Tehran has cited its importation of contaminated centrifuge components to explain the material's presence. The report comments that "it is possible to envisage a number of possible scenarios to explain the presence of high enriched uranium" in the samples, adding that the IAEA will evaluate these unspecified scenarios during the course of its investigation.

A State Department official told Arms Control Today in June that Iran might have used uranium hexafluoride-the material introduced into gas centrifuges for processing into reactor-grade fuel-imported from China in 1991 to test centrifuges. A June 6 IAEA report revealed Tehran's failure to disclose that it imported this material, although its safeguards agreement required it to do so. (See ACT, July/August 2003.) The report added that some of this material was found to be missing and Iran had not accounted for its absence. Iran asserts that it either evaporated or leaked from its containers. The agency is continuing to investigate the issue.

The August report revealed some other inconsistencies regarding Iran's explanation of the enrichment program. For example, Iran had claimed the program was entirely indigenous and began in 1997 but has now acknowledged importing centrifuge components and gives 1985 as the correct starting date. Additionally, Iran initially claimed to have tested its centrifuges with inert gases but now says this is not the case.

Kala Electric Company

Inspectors took environmental samples at the Kala Electric Company during an August 9-12 visit, something Iran had previously refused to allow. …

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IAEA Report Highlights Inconsistencies in Iranian Statements about Its Nuclear Programs
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