Variance and higher order signal moments in neutron flux measurements

Bruno Bärs

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)


Explicit expressions are derived for the second (also called variance or Campbell signal) and higher order central moments of signals from a neutron detector in a nuclear fission reactor. The signal is treated as a compound distribution, which is composed of detection rates of different types of events with fluctuating pulse amplitudes and with arbitrary pulse shapes. The technique with probability generating functions (pgf) is applied.

The present results provide an extended theoretical basis for the utilization of different signal moments for flux monitoring in nuclear fission reactors.
Original languageEnglish
Pages (from-to)403-410
JournalNuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number2
Publication statusPublished - 1989
MoE publication typeA1 Journal article-refereed


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