Determination of neutron capture cross sections and resonance parameters for vanadium and the isotopes of tellurium. Progress report, June 1, 1975--November 30, 1975

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Analysis of $sup 51$V(n,$gamma$) data taken at the forty-meter flight station at the Oak Ridge Electron Accelerator has been essentially completed over the neutron energy (laboratory) range 2.5-100 keV. Resonance parameters for some seventy-five resonances have been extracted. In particular, radiative widths not previously measured have been obtained for many resonances above 50 keV. Data analysis will be continued at least up to neutron energy 150 keV. As part of our continuing study of mass-dependent behavior of resonance parameters, a continuing interest in the astrophysical applications of (n,$gamma$) cross sections, and as a test of recent modifications to our analysis ... continued below

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5 p.

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Winters, R.R. December 1, 1975.

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Analysis of $sup 51$V(n,$gamma$) data taken at the forty-meter flight station at the Oak Ridge Electron Accelerator has been essentially completed over the neutron energy (laboratory) range 2.5-100 keV. Resonance parameters for some seventy-five resonances have been extracted. In particular, radiative widths not previously measured have been obtained for many resonances above 50 keV. Data analysis will be continued at least up to neutron energy 150 keV. As part of our continuing study of mass-dependent behavior of resonance parameters, a continuing interest in the astrophysical applications of (n,$gamma$) cross sections, and as a test of recent modifications to our analysis computer codes, data analysis (begun before the initiation of this contract) of $sup 205$Tl (n,$gamma$) and $sup 205$Tl (n,x) data was continued. This work is now essentially completed over the neutron energy range 2.5-100 keV. Departures from predictions of the statistical model for the resonance parameters have been observed. After considerable effort, it has been concluded that the Denison computer system is not adequate for certain aspects of the required data analysis. Alternate approaches to enable data analysis to be done during the academic year at Denison are being considered. The analysis of the Te(n,$gamma$) data is barely under way and will be the primary focus of efforts over the coming year. However, the tellurium (n,$gamma$) data (for mass numbers 122, 124, 125, 126, 128 and 130) have been processed from the time-of-flight form to effective cross section and a normalization to a recent natural tellurium (n,$gamma$) measurement has been completed. (auth)

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5 p.

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Dep. NTIS

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  • Other Information: Orig. Receipt Date: 30-JUN-76

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  • Report No.: COO--2696-001
  • Grant Number: E(11-1)-2696
  • DOI: 10.2172/4105206 | External Link
  • Office of Scientific & Technical Information Report Number: 4105206
  • Archival Resource Key: ark:/67531/metadc863620

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  • December 1, 1975

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Oct. 10, 2017, 9:18 p.m.

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Winters, R.R. Determination of neutron capture cross sections and resonance parameters for vanadium and the isotopes of tellurium. Progress report, June 1, 1975--November 30, 1975, report, December 1, 1975; United States. (digital.library.unt.edu/ark:/67531/metadc863620/: accessed September 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.