Analysis of gamma-ray spectra from foils activated in a range-thick lead target by 800-MeV protons. Final technical report

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Approximately 400 gamma-ray spectra have been analyzed to obtain the types and quantities of radioisotopes produced when 800-MeV protons interact with a range-thick lead target. These spectra were obtained from the radioactive decay of product isotopes in lead disks placed at various depths and radial positions within the target. These spectra were analyzed with the computer code HYPERMET and the photopeak areas were reduced to nuclei produced per incident proton per cubic centimeter of material. Product nuclei ranged from atomic mass 160 to mass 206 and over a range of half lives from a few minutes to several weeks. The ... continued below

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50 p.

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Laird, C.E. & Mullins, D.H. June 12, 1995.

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Description

Approximately 400 gamma-ray spectra have been analyzed to obtain the types and quantities of radioisotopes produced when 800-MeV protons interact with a range-thick lead target. These spectra were obtained from the radioactive decay of product isotopes in lead disks placed at various depths and radial positions within the target. These spectra were analyzed with the computer code HYPERMET and the photopeak areas were reduced to nuclei produced per incident proton per cubic centimeter of material. Product nuclei ranged from atomic mass 160 to mass 206 and over a range of half lives from a few minutes to several weeks. The results of this analysis have been outlined in this report and transmitted on computer disk to Los Alamos National Laboratory. The consistency of these analyses have been confirmed by a comparison of photopeak areas obtained at LANL with the computer code GAMANAL with those from HYPERMET for two gamma-ray spectra. Also, the nuclear production per proton per cm{sub 3} obtained from these two spectra analyzed both at LANL and at EKU have been found to agree to within the statistical accuracy of the peak-fitting programs. This analysis of these 400 gamma-ray spectra has determined the nuclear production per incident proton per cm{sub 3} at five regularly-spaced radial positions and depths up to 40 cm into a range-thick lead target.

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50 p.

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OSTI as DE96003061

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  • Other Information: PBD: 12 Jun 1995

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  • Other: DE96003061
  • Report No.: LA-SUB--95-188
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/152655 | External Link
  • Office of Scientific & Technical Information Report Number: 152655
  • Archival Resource Key: ark:/67531/metadc622432

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Office of Scientific & Technical Information Technical Reports

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  • June 12, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Feb. 25, 2016, 1:19 p.m.

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Laird, C.E. & Mullins, D.H. Analysis of gamma-ray spectra from foils activated in a range-thick lead target by 800-MeV protons. Final technical report, report, June 12, 1995; New Mexico. (digital.library.unt.edu/ark:/67531/metadc622432/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.