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Irradiation facilities at Oak Ridge National Laboratory

Description: Several irradiation facilities at two of Oak Ridge National Laboratory's nuclear reactors (HFIR, ORR) are described. The range of facilities available will accommodate specimen sample sizes from a few millimeters in diameter up to 600 mm square. Nuclear characteristics of these facilities range to a maximum of 1.2 x 10/sup 19/ n/m/sup 2/s fast neutron flux; 2.9 x 10/sup 19/ n/m/sup 2/s thermal neutron flux; and 1.8 x 10/sup 10/ R/h gamma flux.
Date: January 1, 1984
Creator: Thoms, K.R.; Conlin, J.A. & West, C.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Measured internal gas-flow conductance of an operating GCFR fuel rod

Description: The gas flow conductance through an operating stainless-steel clad, mixed-oxide fueled rod with a UO/sub 2/ blanket has been measured periodically in-situ over a period of more than three years and 90 MWd/kg (9.6/sup a//o) burnup. Loss of flow conductance was negligible until about 50 MWd/kg fuel burnup and then began decreasing exponentially. Correlation of the data with flow measurements, gamma scanning, and metallography data taken during post-exposure examination from other irradiations and… more
Date: January 1, 1976
Creator: Longest, A. W.; Gat, U.; Conlin, J. A. & Campana, R. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Design, operation, and initial results from a series of graphite creep irradiation experiments

Description: A series of irradiation tests was designed to evaluate the creep characteristics at elevated temperatures and to high fast fluences of various graphites of interest to HTGR designers. The series encompasses the irradiation of 28 specimens 15.24 mm (0.6 in.) diam x 25.4 mm (1 in.) long at 900/sup 0/C to incremental exposures of 1, 2, 4, and 8 x 10/sup 21/ neutrons cm/sup -2/ (E greater than 0.18 MeV); 28 similar specimens at 600/sup 0/C to the same exposures; and 28 other similar specimens at 12… more
Date: January 1, 1976
Creator: Senn, R. L.; Cook, W. H.; Conlin, J. A. & Eatherly, W. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Design, operation, and initial results from capsule OC-1, the first of a series of graphite creep irradiation experiments. [HTGR]

Description: A series of 12 irradiation experiments was designed to evaluate the creep characteristics of graphites when exposed to elevated temperatures and high fast fluences. Various graphites of interest to HTGR designers are to be examined. The series encompasses the irradiation of 28 specimens, each 15.24 mm (0.6 in.) in diameter by 25.4 mm (1 in.) long, to incremental exposures of 1, 2, 4, and 8 E + 25 n/m/sup 2/ (E greater than 0.18 MeV) at 900/sup 0/C; 28 similar specimens to the same exposures at … more
Date: April 25, 1977
Creator: Senn, R. L.; Conlin, J. A.; Cook, W. H. & Eatherly, W. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

HTGR experiment HRB-15b: particle loadings and irradiation in the High Flux Isotope Reactor

Description: Candidate high-temperature gas-cooled reactor fissile and fertile particles were irradiated in the High Flux Isotope Reactor removable beryllium reflector facility (RB-5) for eight reactor cycles. The experiment contained 18 different ''types'' of fissile particles and five different ''types'' of fertile particles. All uranium was 20% enriched in /sup 235/U. The loose particles were loaded into ''trays'' that resemble flat graphite washers, each having 116 drilled holes in one face. One hundred… more
Date: December 1, 1979
Creator: Thomas, W. E.; Long, E. L., Jr.; Conlin, J. A. & Johnsen, B. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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