Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Mounir Bakkali

Vladimir Kondrasovs

Karim Boudergui

Stéphane Normand

Romain Coulon

Thierry Montagu

The invention relates to a system for the monitoring and control of the core of a nuclear reactor along which N fission chambers CF(i=1, 2, . . . , N) are positioned, N being an integer number greater than or equal to 2, in which: 

System for controlling a nuclear reactor core

A method for detecting a radioactive source moving on a linear path substantially parallel to an alignment of N detectors. The method includes: forming N&#xd7;Npulse counting values M(i=1, 2, . . . , N and t=1, 2, . . . , N) from N&#xd7;Ndetection signals delivered by the N detectors in the form of a succession over time of Nsets of N signals simultaneously detected by the N detectors over a same duration &#x394;t, a pulse counting value representing a number of pulses detected by a detector over a duration &#x394;t; and computing, using a computer: a set of Ncorrelation products R, a static meanof the N&#xd7;Ncounting values, a correlation condition for each correlation product R.

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Meudon, France

Mounir Bakkali