Neutron activation of the NIF final optics assemblies and their effect upon occupational doses

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During routine operations, the National Ignition Facility (NIF) will attain fusion yields as high as 1200 MJ/yr with individual experiments reaching 20 MJ. Neutron activation of components within the NIF Target Bay will result in occupational doses that must be understood and limited to {le} 10 person-rem/yr. Previous work has shown that the final optics assemblies (FOAs) are the key to worker doses. The present work gives results for three-dimensional analyses including dose rates and worker doses. Results for modified FOA designs are also presented. Finally, a concept for a polyethylene shielding plug is discussed and shown to substantially reduce ... continued below

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Latkowski, J.F. July 23, 1998.

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During routine operations, the National Ignition Facility (NIF) will attain fusion yields as high as 1200 MJ/yr with individual experiments reaching 20 MJ. Neutron activation of components within the NIF Target Bay will result in occupational doses that must be understood and limited to {le} 10 person-rem/yr. Previous work has shown that the final optics assemblies (FOAs) are the key to worker doses. The present work gives results for three-dimensional analyses including dose rates and worker doses. Results for modified FOA designs are also presented. Finally, a concept for a polyethylene shielding plug is discussed and shown to substantially reduce occupational doses.

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800 Kilobytes pages

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  • 1998 American Nuclear Society Annual Meeting, Nashville, TN (US), 06/07/1998--06/11/1998

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  • Report No.: UCRL-JC-129515
  • Report No.: 39DP02000
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 2805
  • Archival Resource Key: ark:/67531/metadc670016

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  • July 23, 1998

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  • June 29, 2015, 9:42 p.m.

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  • May 6, 2016, 1:43 p.m.

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Latkowski, J.F. Neutron activation of the NIF final optics assemblies and their effect upon occupational doses, article, July 23, 1998; California. (digital.library.unt.edu/ark:/67531/metadc670016/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.