FB-line neutron multiplicity counter operation manual

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Description

This manual describes the design features, performance, and operating characteristics for the FB-Line Neutron Multiplicity counter (FBLNMC). The FBLNMC counts neutron multiplicities to quantitatively assay plutonium in many forms, including impure scrap and waste. Monte Carlo neutronic calculations were used to design the high-efficiency (57%) detector that has 113 {sup 3}He tubes in a high-density polyethylene body. The new derandomizer circuit is included in the design to reduce deadtime. The FBLNMC can be applied to plutonium masses in the range from a few tens of grams to 5 kg; both conventional coincidence counting and multiplicity counting can be used as ... continued below

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19 p.

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Langner, D.G.; Sweet, M.R.; Salazar, S.D. & Kroncke, K.E. December 31, 1997.

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Description

This manual describes the design features, performance, and operating characteristics for the FB-Line Neutron Multiplicity counter (FBLNMC). The FBLNMC counts neutron multiplicities to quantitatively assay plutonium in many forms, including impure scrap and waste. Monte Carlo neutronic calculations were used to design the high-efficiency (57%) detector that has 113 {sup 3}He tubes in a high-density polyethylene body. The new derandomizer circuit is included in the design to reduce deadtime. The FBLNMC can be applied to plutonium masses in the range from a few tens of grams to 5 kg; both conventional coincidence counting and multiplicity counting can be used as appropriate. This manual gives the performance data and preliminary calibration parameters for the FBLNMC.

Physical Description

19 p.

Notes

INIS; OSTI as DE98003095

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  • Other Information: PBD: [1997]

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  • Other: DE98003095
  • Report No.: LA-UR--97-4200
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/578659 | External Link
  • Office of Scientific & Technical Information Report Number: 578659
  • Archival Resource Key: ark:/67531/metadc690362

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Creation Date

  • December 31, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • May 20, 2016, 1:14 p.m.

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Langner, D.G.; Sweet, M.R.; Salazar, S.D. & Kroncke, K.E. FB-line neutron multiplicity counter operation manual, report, December 31, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc690362/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.