Nuclear Resonance Fluorescence Excitations Near 2 MeV in 235U and 239Pu

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A search for nuclear resonance fluorescence excitations in {sup 235}U and {sup 239}Pu within the energy range of 1.0- to 2.5-MeV was performed using a 4-MeV continuous bremsstrahlung source at the High Voltage Research Laboratory at the Massachusetts Institute of Technology. Measurements utilizing high purity Ge detectors at backward angles identified 9 photopeaks in {sup 235}U and 12 photopeaks in {sup 239}Pu in this energy range. These resonances provide unique signatures that allow the materials to be non-intrusively detected in a variety of environments including fuel cells, waste drums, vehicles and containers. The presence and properties of these states may ... continued below

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7 p. (0.3 MB)

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Bertozzi, W; Caggiano, J A; Hensley, W K; Johnson, M S; Korbly, S E; Ledoux, R J et al. December 27, 2006.

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A search for nuclear resonance fluorescence excitations in {sup 235}U and {sup 239}Pu within the energy range of 1.0- to 2.5-MeV was performed using a 4-MeV continuous bremsstrahlung source at the High Voltage Research Laboratory at the Massachusetts Institute of Technology. Measurements utilizing high purity Ge detectors at backward angles identified 9 photopeaks in {sup 235}U and 12 photopeaks in {sup 239}Pu in this energy range. These resonances provide unique signatures that allow the materials to be non-intrusively detected in a variety of environments including fuel cells, waste drums, vehicles and containers. The presence and properties of these states may prove useful in understanding the mechanisms for mixing low-lying collective dipole excitations with other states at low excitations in heavy nuclei.

Physical Description

7 p. (0.3 MB)

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PDF-file: 7 pages; size: 0.3 Mbytes

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  • Journal Name: Physical Review C, vol. 78, no. 4, October 8, 2008, pp. 041601; Journal Volume: 78; Journal Issue: 4

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  • Report No.: UCRL-JRNL-227017
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 943829
  • Archival Resource Key: ark:/67531/metadc896816

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  • December 27, 2006

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  • Sept. 27, 2016, 1:39 a.m.

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  • April 17, 2017, 12:59 p.m.

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Bertozzi, W; Caggiano, J A; Hensley, W K; Johnson, M S; Korbly, S E; Ledoux, R J et al. Nuclear Resonance Fluorescence Excitations Near 2 MeV in 235U and 239Pu, article, December 27, 2006; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc896816/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.