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in creator/contributor: "Mahmood, S.T."  
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Neutron Dosimetry of the HFIR Hydraulic Facility

Description: The total, fast, and thermal neutron fluxes at five axial positions in the High Flux Isotope Reactor (HFIR) hydraulic tube have been measured using bare and/or cadmium-covered activation, fission, and helium accumulation flux monitors. The spectrum-averaged, one-group cross sections over selected energy ranges for the reactions used in the measurements were obtained using cross sections from the ENDF/B-V file, and the target region volume-integrated spectrum was calculated with DORT, a two-dime… more
Date: January 1, 1995
Creator: Mahmood, S.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigations of low-temperature neutron embrittlement of ferritic steels

Description: Investigations were made into reasons for accelerated embrittlement of surveillance specimens of ferritic steels irradiated at 50C at the High Flux Isotope Reactor (HFIR) pressure vessel. Major suspects for the precocious embrittlement were a highly thermalized neutron spectrum,a low displacement rate, and the impurities boron and copper. None of these were found guilty. A dosimetry measurement shows that the spectrum at a major surveillance site is not thermalized. A new model of matrix harden… more
Date: December 31, 1992
Creator: Farrell, K.; Mahmood, S. T.; Stoller, R. E. & Mansur, L. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Neutron dosimetry of the HFIR hydraulic facility

Description: The total, fast, and thermal neutron fluxes at five axial positions in the High Flux Isotope Reactor (HFIR) hydraulic tube have been measured using bare and/or cadmium-covered activation, fission, and helium accumulation flux monitors. The spectrum-averaged, one-group cross sections over selected energy ranges for the reactions used in the measurements were obtained using cross sections from the ENDF/B-V file, and the target region volume-integrated spectrum was calculated with DORT, a two-dime… more
Date: February 1, 1995
Creator: Mahmood, S. T.; Mirzadeh, S.; Farrell, K.; Pace, J. V. III & Oliver, B. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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