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Begin New Search Topic Nuclear Power Author David Albright

11. Performance of the IR-1 Centrifuge at Natanz

Author:
David Albright and Christina Walrond
Publication Date:
10-2011
Content Type:
Special Report
Institution:
Institute for Security and International Studies (ISIS)
Abstract:
During the past year, the performance of the IR-1 centrifuges at the Natanz Fuel Enrichment Plant (FEP) has faltered. Although the average monthly production of 3.5 percent low enriched uranium (LEU) has increased to about 150 kg/month, the number of centrifuges needed to produce this LEU has increased disproportionately compared to the previous year. During the last year, Iran has needed 5,860 IR-1 centrifuges to produce this amount of LEU. In the previous year, it would have needed only about 4,820 IR-1 centrifuges to make this quantity of LEU.
Topic:
Nuclear Power, Uranium, and Natanz Fuel Enrichment Plant (FEP)
Political Geography:
Iran and Middle East

12. Characterizing the Crisis at Fukushima Daiichi Nuclear Power Station

Author:
David Albright and Christina Walrond
Publication Date:
04-2011
Content Type:
Special Report
Institution:
Institute for Security and International Studies (ISIS)
Abstract:
During the crisis at the Fukushima nuclear power reactors following the earthquake and tsunami on March 11, 2011, the Japanese Safety Authority issued ratings for the accident on the International Nuclear Events Scale (INES). Initially, it stated that the incident was a level 4, but it subsequently raised the levels assigned to each reactor, with the majority receiving a level 5. Table 1 indicates the latest ratings issued March 18 by the Japanese authority, where it has parsed the ratings based on accidents at individual reactors. Although the radioactivity is emitted from different reactor buildings, it represents a collective hazard to public health. As such, the accident should be judged comprehensively, not only in component parts. Simply because some aspects of the crisis were not as catastrophic as others does not lessen the overall severity of the accident. ISIS continues to assess that the accident is a level 6. The INES system exists to communicate with the public about the severity and extent of a nuclear event. It is meant to provide a guide, such as the Richter scale for earthquakes, to qualify a nuclear accident. As such, it is important to accurately rate a radiological event in order to afford the public the time and information needed to take necessary precautions.
Topic:
Natural Disasters, Nuclear Power, and Fukushima Disaster
Political Geography:
Japan and Asia