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"Exposure to radiotherapy or radiation-based diagnostics like computed tomography (CT scans) in early childhood increases breast cancer risk in adulthood, a new study in the Jan 2010 issue of Cancer Epidemiology, Biomarkers & Prevention. The study involved women exposed to thymic irradiation during infancy from 1926 to 1957. Breast cancer was identified in 96 treated in an average dose of 0.71 Gy and 57 untreated women during 159,459 person-year follow-up. Adams MJ and colleagues from University of Rochester School of Medicine and Dentistry found women who were treated by radiation were 200 percent more likely to develop breast cancer than those who did not receive radiation. Higher doses of radiation were linked to high risk of breast cancer."

The Nuclear Regulatory Commission has issued a supplemental safety evaluation report for the license renewal application of the Oyster Creek Nuclear Generating Station in Toms River, N.J. The supplement clarifies commitments agreed to by AmerGen Energy Co., the plant's operator, as part of the aging management program for the reactor's drywell shell. It also documents the NRC staff's evaluation of AmerGen's reanalysis of the effects of fatigue on reactor recirculation outlet nozzles. The NRC asked AmerGen to conduct a new analysis when the staff determined that AmerGen's original calculations used only one of six stress components typically used. The staff's evaluation determined that the original analysis was, in fact, considerably more conservative than the confirmatory analysis. Therefore, the original results were acceptable.