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Spriggs, G.D.; Adams, K.J.; Parsons, D.K.
Los Alamos National Lab., NM (United States). Funding organisation: USDOE, Washington, DC (United States)1997
Los Alamos National Lab., NM (United States). Funding organisation: USDOE, Washington, DC (United States)1997
AbstractAbstract
[en] Historically, the term neutron lifetime has been used in the literature to describe a wide variety of different time intervals associated with a neutron's trek through a given system. This duplication of usage of the term neutron lifetime has undoubtedly resulted in some confusion concerning its physical meaning. In hopes of reducing some of this confusion, we suggest in this work that the various time intervals characterizing the life of a neutron be divided into three general categories: (1) neutron lifespans, (2) reaction rate lifetimes, and (3) neutron generation times. In this report, we define these three different time intervals and give deterministic and Monte Carlo transport expressions that can be used to calculate them
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1997; 8 p; 11. meeting on reactor physics and thermal hydraulics; Pocos de Caldas Springs (Brazil); 18-22 Aug 1997; 4. international meeting on nuclear applications; Pocos de Caldas Springs (Brazil); 18-22 Aug 1997; CONF-970810--1; CONTRACT W-7405-ENG-36; Also available from OSTI as DE97007472; NTIS; US Govt. Printing Office Dep
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