Gamma Ray Multiplicity of 252Cf Spontaneous Fission using LiBerACE

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We are studying the gamma ray and neutron multiplicity of various fission processes, beginning with the spontaneous fission of {sup 252}Cf, for a variety of basic and applied science purposes. The Livermore-Berkeley Array for Collaborative Experiments (LiBerACE) consists of six high-purity germanium Clover detectors (HPGe) each enclosed by an array of 16 bismuth-germanate (BGO) detectors. These detectors were arranged in a cubic pattern around a 1 {micro}Ci {sup 252}Cf source to attempt to cover as much solid angle of gamma ray emission as possible with a high level of segmentation. The single-gamma detector response function is determined at several energies ... continued below

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8 p. (0.4 MB)

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Bleuel, D L; Bernstein, L A; Burke, J T; Heffner, M D; Norman, E B; Scielzo, N D et al. January 15, 2008.

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We are studying the gamma ray and neutron multiplicity of various fission processes, beginning with the spontaneous fission of {sup 252}Cf, for a variety of basic and applied science purposes. The Livermore-Berkeley Array for Collaborative Experiments (LiBerACE) consists of six high-purity germanium Clover detectors (HPGe) each enclosed by an array of 16 bismuth-germanate (BGO) detectors. These detectors were arranged in a cubic pattern around a 1 {micro}Ci {sup 252}Cf source to attempt to cover as much solid angle of gamma ray emission as possible with a high level of segmentation. The single-gamma detector response function is determined at several energies by tagging in a HPGe detector on the photopeak of one of two gamma rays in two-gamma ray calibration sources and observing the multiplicity of the remainder of the array. Summing these single-gamma responses in groups yields the response function of the array to higher multiplicity events, which are convolved with multiplicity distributions from theoretical models and compared to the measured results to test the models validity.

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8 p. (0.4 MB)

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PDF-file: 8 pages; size: 0.4 Mbytes

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  • Presented at: Fourth International Conference on Fission and Properties of Neutron-Rich Nuclei, Sanibel Island, FL, United States, Nov 11 - Nov 17, 2007

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  • Report No.: LLNL-CONF-400574
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 924598
  • Archival Resource Key: ark:/67531/metadc895542

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  • January 15, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • April 17, 2017, 1:10 p.m.

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Bleuel, D L; Bernstein, L A; Burke, J T; Heffner, M D; Norman, E B; Scielzo, N D et al. Gamma Ray Multiplicity of 252Cf Spontaneous Fission using LiBerACE, article, January 15, 2008; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc895542/: accessed July 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.