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August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
Paul N. Stevens
Fusion Science and Technology | Volume 5 | Number 1 | January 1984 | Pages 109-114
Deep Penetration: Problem and Method of Solution | Special Section Contents / Sheilding | doi.org/10.13182/FST84-A23084
Articles are hosted by Taylor and Francis Online.
The formal basis of the use of calculated importance information for biasing forward and adjoint Monte Carlo deep penetration shielding problems is presented. The distinction between the “point value” and “event value” functions for adjoint problems is discussed. The analysis reveals that the emergent particle density, and not the particle flux density, is the proper choice of biasing function for the selection of the ad junctor's next collision site. This is analogous to the choice of the event value as the value function for the biased selection of the next collision site in the forward analysis. A numerical illustrative problem consisting of a concrete cylinder with an axial duct, a plane source on the bottom surface, and four joint detectors outside the emergent top surface is used to demonstrate this theory.