Relationship between k{sub eff} and the fraction of critical mass

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It is not universally understood that k{sub eff} and fractional critical mass are related in a non linear fashion. For example, a neutronic system with a k{sub eff} = 0. 95 is NOT at 95% of its critical mass. What is striking is just how non-linear the relationship between k{sub eff} and critical mass really is. This relationship is investigated and documented below for both unfavorable (i.e., very reactive) and favorable (less reactive) geometries. The implications of this non-linearity for criticality safety regulation will also be discussed.

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5 p.

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O`Dell, R.D. & Parsons, D.K. May 1, 1997.

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Description

It is not universally understood that k{sub eff} and fractional critical mass are related in a non linear fashion. For example, a neutronic system with a k{sub eff} = 0. 95 is NOT at 95% of its critical mass. What is striking is just how non-linear the relationship between k{sub eff} and critical mass really is. This relationship is investigated and documented below for both unfavorable (i.e., very reactive) and favorable (less reactive) geometries. The implications of this non-linearity for criticality safety regulation will also be discussed.

Physical Description

5 p.

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INIS; OSTI as DE97003384

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  • ARS `97: American Nuclear Society (ANS) international meeting on advanced reactors safety, Orlando, FL (United States), 1-5 Jun 1997

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  • Other: DE97003384
  • Report No.: LA-UR--97-141
  • Report No.: CONF-970607--20
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 471384
  • Archival Resource Key: ark:/67531/metadc676461

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Office of Scientific & Technical Information Technical Reports

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  • May 1, 1997

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  • July 25, 2015, 2:21 a.m.

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  • May 20, 2016, 1:50 p.m.

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O`Dell, R.D. & Parsons, D.K. Relationship between k{sub eff} and the fraction of critical mass, article, May 1, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc676461/: accessed August 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.