SiO2 - polyethylene reflected critical assembly

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Description

The Planet universal critical assembly machine was used to perform a series of three critical experiments. This experiment used HEU foils reflected by polyethylene and interleaved with plates of SiO{sub 2} glass and polyethylene. Only the experiment performed using the SiO{sub 2} matrix material is evaluated in this report. The assembly was delayed critical with 33 HEU foils or 17 units (sets of HEU foils). The critical assembly has an intermediate neutron spectrum, with 51.2% of the fissions occurring between 0.625 eV and 100 keV. The calculational results show good agreement with the experimental results.

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3 p.

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Brewer, R. W. (Roger W.) & Sanchez, R. G. (Rene G.) January 1, 2001.

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Description

The Planet universal critical assembly machine was used to perform a series of three critical experiments. This experiment used HEU foils reflected by polyethylene and interleaved with plates of SiO{sub 2} glass and polyethylene. Only the experiment performed using the SiO{sub 2} matrix material is evaluated in this report. The assembly was delayed critical with 33 HEU foils or 17 units (sets of HEU foils). The critical assembly has an intermediate neutron spectrum, with 51.2% of the fissions occurring between 0.625 eV and 100 keV. The calculational results show good agreement with the experimental results.

Physical Description

3 p.

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  • "Submitted to: American Nuclear Society 2001 Anuual Meeting"

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  • Report No.: LA-UR-01-0050
  • Report No.: LA-UR-01-50
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 975104
  • Archival Resource Key: ark:/67531/metadc925653

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • January 1, 2001

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

Description Last Updated

  • Dec. 12, 2016, 1:08 p.m.

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Brewer, R. W. (Roger W.) & Sanchez, R. G. (Rene G.). SiO2 - polyethylene reflected critical assembly, article, January 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc925653/: accessed June 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.