D.3. Plutonium Experiments
15. The Agency has continued to seek clarification from Iran about its plutonium separation
experiments (GOV/2006/38, paras 8–9). Since the Director General’s last report, the Agency has been
able to evaluate the explanations provided by Iran in June and examine the copy of the notebook kept
by the researcher responsible for the plutonium experiments, and has concluded that they did not
provide sufficient clarification of the outstanding issues. In an effort to acquire further information
about the irradiation parameters, the Agency also met, on 11 July 2006, with a reactor operator and the
researcher, who also did not provide the data necessary to clarify the issues. Iran has stated that no
other relevant information is available.
16. In a letter dated 10 August 2006, the Agency informed Iran that, given the information received
from Iran to date, the Agency would not be able to resolve the outstanding inconsistencies unless
additional information were made available by Iran.
17. The depleted uranium targets which had been irradiated in the course of the plutonium
experiments are stored in containers located at the Karaj Waste Storage Facility (GOV/2005/67, para.
24). On 8 August 2005, the Agency took environmental samples from one of those containers. The
results from their analysis, recently finalized by the Agency, indicate the presence of high enriched
uranium particles. On 15 August 2006, Iran was requested to provide information about the source of
the contamination and the past use of the containers.