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Automatic diagnosis of alarms: a system to improve operator emergency response

Description: A system is being developed at the Savannah River Plant to help reactor operators respond to multiple alarms in a developing incident situation. The need for such systems has becme evident in recent years, particularly after the Three Mile Island incident.
Date: January 1, 1980
Creator: Olson, H. P.; Gimmy, K. L.; Nomm, E. & Finley, R. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Validation of ANS-5. 1 as the decay heat standard at the Savannah River Plant

Description: The Savannah River Laboratory (SRL) is upgrading the methods used to predict the post shutdown decay heat of the Savannah River reactors by implementing procedures based on the ANS Decay Heat Power in Light Water Reactors standard. This approach takes advantage of the large volume of research used in developing the standard and establishes compatibility with the nuclear industry. To qualify the decay heat standard for use, a series of comparisons were made between detailed decay heat calculatio… more
Date: January 1, 1982
Creator: Apperson, Jr, C. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Measurement of reactor tube cladding thickness by x-ray fluorescence spectrometry

Description: An x-ray fluorescence spectrometer was designed and fabricated which nondestructively determines the thickness of aluminum cladding at small suspected thin spots in the inner or outer surface of actinide reactor tubes. The analysis method is based on the difference in absorption of actinide L/sub ..cap alpha../ and L/sub ..beta../ fluorescent x-rays in passing through the cladding. Calibration plots of the logarithm of the L/sub ..beta..//L/sub ..cap alpha../ x-ray intensity ratio versus claddi… more
Date: January 1, 1978
Creator: Slates, R. V. & Stewart, W. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Phytoplankton distribution in three thermally different but edaphically similar reactor cooling reservoirs

Description: Phytoplankton community structure and the physicochemical characteristics of three reactor cooling reservoirs in close proximity and of similar age and bottom type were studied during 1978. The three reservoirs differed in thermal alteration resulting from reactor cooling water as follows: (1) considerable heating with lake-wide temperatures >30/sup 0/C, even in winter; (2) a maximal 5/sup 0/C increase occurring in only one of three major arms of the reservoir; and (3) no thermal effluent re… more
Date: January 1, 1982
Creator: Wilde, E W
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Overview of the Savannah River reactor surveillance program

Description: Preliminary radiation effects studies, now nearing completion, are based upon short-term irradiations in the High Flux Isotope Reactor (HFIR) and University of Buffalo Reactor (UBR). The purpose of these studies is to assess the impact of radiation effects on the performance and service life of Savannah River Site (SRS) reactor components. The SRS reactor surveillance program was simultaneously established in order to validate the results of these short-term irradiations under conditions more a… more
Date: January 1, 1991
Creator: Sindelar, R.L.; Thomas, J.K. & Baumann, N.P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Reactivity effects of moderator voids

Description: Reactivity worths for large moderator voids similar to those produced by steaming in postulated reactor transients were measured in the Process Development Pile (PDP) reactor. The experimental results were compared to the computed void worths obtained from techniques currently used in routine safety analyses. Neutron energy spectrum measurements were used to verify a modified lattice pattern that correctly computed the measured spectrum, and consequently, improved macroscopic cross sections. In… more
Date: January 1, 1975
Creator: Ahlfeld, C.E. & Pryor, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Response of a double tube sheet structure to hydraulic pressure transients

Description: A general procedure was developed to analyze complex tube-sheet structures under dynamic loading conditions. The top shield of a Savannah River Plant production reactor is a stainless steel box structure perforated by tubular conduits. It supports the hanging fuel assemblies and the weight of the reactor superstructure. During normal reactor operation the top shield and the fuel assemblies are submerged in water coolant. For a postualted transient induced by a loss-of-coolant, a loading profile… more
Date: January 1, 1979
Creator: Yau, W. F. & Harris, S. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Chemical aspects of gadolinium nitrate as soluble nuclear poison in Savannah River Plant reactors

Description: The aqueous solution chemistry of gadolinium nitrate was studied to identify conditions that interfere with successful cleanup of gadolinium in Savannah River Plant reactor systems. Injecting a gadolinium nitrate solution into the D/sub 2/O coolant-moderator constitutes a supplementary mode of reactor shutdown. The resulting approximately 0.001M gadolinium nitrate solution is then deionized by recirculation through mixed-bed ion exchange resins before reactor operation is resumed.
Date: January 1, 1978
Creator: Baumann, E. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Wetlands mapping with spot multispectral scanner data

Description: Government facilities such as the US Department of Energy's Savannah River Plant (SRP) near Aiken, South Carolina, often use remote sensing data to assist in environmental management. Airborne multispectral scanner (MSS) data have been acquired at SRP since 1981. Various types of remote sensing data have been used to map and characterize wetlands. Regional Landsat MSS and TM satellite data have been used for wetlands mapping by various government agencies and private organizations. Furthermore,… more
Date: January 1, 1989
Creator: Mackey, H.E. Jr. (Savannah River Lab., Aiken, SC (USA)) & Jensen, J.R. (South Carolina Univ., Columbia, SC (USA). Dept. of Geography)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Confinement of airborne radioactivity. Progress report, January--December 1977

Description: Iodine penetration and ignition temperature data obtained from carbon that was removed from the Savannah River Plant (SRP) confinement system show that Type GX-176 carbon has a useful life of at least 30 months. Development studies on new halogen adsorbers showed that coal- and petroleum-base carbons can be treated in the laboratory to retain methyl iodide as well as, or better than, commercial coconut-base carbons. Radiation stability tests for iodine-loaded, silver-exchanged zeolite (AgX) sho… more
Date: January 1, 1979
Creator: Evans, A.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Method for generating neutronic data bases for transient reactor calculations

Description: A method has been devised for the generation of neutronic data bases for use in reactor transient calculations using diffusion theory. The method makes use of scientific knowledge and experience in the trial and error approach to the correlation process. The data requirements for the support of the data base are made practical by the use of the multi-regime concept and the application of the Box-Behnken or other incomplete factorial design concepts. The method has been thoroughly tested and has… more
Date: January 1, 1976
Creator: Buckner, M. R. & Parks, P. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Review of advanced reactor transient analysis capabilities and applications for Savannah River Plant reactors. [GRASS code]

Description: GRASS is a three-dimensional, coupled neutronic and engineering code for analysis of the radioisotope production reactors at the Savannah River Plant. The capabilities of GRASS are reviewed with emphasis on recent additions to model accident conditions involving the transport of molten fuel material and to accurately characterize neutronic and engineering feedback. The general application of GRASS to the Savannah River reactors is discussed, and results are presented for the analyses of severla… more
Date: January 1, 1977
Creator: Buckner, M. R.; Hostetler, D. E.; Anderson, M. M. & Dodds, H. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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NEW MATERIALS DEVELOPED TO MEET REGULATORY AND TECHNICAL REQUIREMENTS ASSOCIATED WITH IN-SITU DECOMMISSIONING OF NUCLEAR REACTORS AND ASSOCIATED FACILITIES

Description: For the 2010 ANS Embedded Topical Meeting on Decommissioning, Decontamination and Reutilization and Technology, Savannah River National Laboratory's Mike Serrato reported initial information on the newly developed specialty grout materials necessary to satisfy all requirements associated with in-situ decommissioning of P-Reactor and R-Reactor at the U.S. Department of Energy's Savannah River Site. Since that report, both projects have been successfully completed and extensive test data on both … more
Date: January 18, 2012
Creator: Blankenship, J.; Langton, C.; Musall, J. & Griffin, W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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FROM CONCEPT TO REALITY, IN-SITU DECOMMISSIONING OF THE P AND R REACTORS AT THE SAVANNAH RIVER SITE

Description: SRS recently completed an approximately three year effort to decommission two SRS reactors: P-Reactor (Building 105-P) and R-Reactor (Building 105-R). Completed in December 2011, the concurrent decommissionings marked the completion of two relatively complex and difficult facility disposition projects at the SRS. Buildings 105-P and 105-R began operating as production reactors in the early 1950s with the mission of producing weapons material (e.g., tritium and plutonium-239). The 'P' Reactor an… more
Date: January 9, 2012
Creator: Musall, J.; Blankenship, J. & Griffin, W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Recolonization of reactor cooling water system by the Asiatic clam Corbicula fluminea

Description: Recolonization rates for the Asiatic clam Corbicula fluminea ranged from 3.0 to 5.6 metric tons per year in cooling water basins for a nuclear production reactor at the Savannah River Plant. However, a 10-month cleaning cycle for each basin (flow area, 6100 m/sup 2/) keeps the depth of the silt/clam layer low. With this cleaning frequency, Corbicula are not reaching heat exchangers at sufficient size or in sufficient numbers to restrict flow. Data are presented on the size/age distribution for … more
Date: January 1, 1978
Creator: Harvey, R. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Results of Aquifer Tests Performed Near R-Area, Savannah River Site

Description: The aquifer testing described in this report was conducted in response to USEPA comments (WSRC, 1998) on the Rev. 0 R-Reactor Seepage Basins RFI/RI Report (WSRC, 1998a), Appendix G, Groundwater Contaminant Transport Modeling for the R-Reactor Seepage Basins (RRSB)/108-4R Overflow Basin Operable Unit. The R-area regional flow model described in Appendix G of the RFI/RI is based on small-scale and/or indirect measures of hydraulic conductivity, including laboratory tests, slug tests, cone penetra… more
Date: January 31, 2001
Creator: Hiergesell, R.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Surface Sediments in Precooler Ponds 2, 4, and 5: March 2000

Description: Pond 2, Pond 4, and Pond 5 are inactive reactor cooling impoundments built in 1961 on the R-Reactor Effluent System in the east-central portion of the Department of Energy's Savannah River Site in Aiken, South Carolina. These precooler ponds are part of the Par Pond cooling water system and are considered part of the Par Pond operable unit. The intent was not to characterize the ponds, but to identify the maximum levels of contamination that could be exposed if the ponds are drained to remove t… more
Date: January 29, 2001
Creator: Dunn, D.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Par Pond vegetation status Summer 1995 -- Summary

Description: The water level of Par Pond was lowered approximately 20 feet in mid-1991 in order to protect downstream residents from possible dam failure suggested by subsidence on the downstream slope of the dam and to repair the dam. This lowering exposed both emergent and nonemergent macrophyte beds to drying conditions resulting in extensive losses. A survey of the newly emergent, shoreline aquatic plant communities of Par Pond began in June 1995, three months after the refilling of Par Pond to approxim… more
Date: January 1996
Creator: Mackey, H. E., Jr. & Riley, R. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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