Determination of delayed neutrons source in the frequency domain based on in-pile oscillation measurements

Yanai Yedvab, Ido Reiss, Michael Bettan, Ronen Harari, Amit Grober, Hanania Ettedgui, El'd N. Caspi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

A method for determining delayed neutrons source in the frequency domain based on measuring power oscillations in a non-critical reactor is presented. This method is unique in the sense that the delayed neutrons source is derived from the dynamic behavior of the reactor, which serves as the measurement system. An algorithm for analyzing power oscillation measurements was formulated, which avoids the need for a multi-parameter non-linear fit process used by other methods. Using this algorithm results of two sets of measurements performed in IRR-I & IRR-II (Israeli Research Reactors I & II) are presented. The agreement between measured values from both reactors and calculated values based on Keepin (and JENDL-3.3) group parameters is very good.

Original languageEnglish
Title of host publicationPHYSOR-2006 - American Nuclear Society's Topical Meeting on Reactor Physics
StatePublished - 1 Dec 2006
EventPHYSOR-2006 - American Nuclear Society's Topical Meeting on Reactor Physics - Vancouver, BC, Canada
Duration: 10 Sep 200614 Sep 2006

Publication series

NamePHYSOR-2006 - American Nuclear Society's Topical Meeting on Reactor Physics
Volume2006

Conference

ConferencePHYSOR-2006 - American Nuclear Society's Topical Meeting on Reactor Physics
Country/TerritoryCanada
CityVancouver, BC
Period10/09/0614/09/06

Keywords

  • Delayed neutrons
  • IRR-I
  • IRR-II
  • In-pile measurements

ASJC Scopus subject areas

  • Engineering (all)

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