METHOD FOR DISCRIMINATING A GAMMA COMPONENT AND A NEUTRON COMPONENT IN AN ELECTRONIC SIGNAL

摘要

The invention relates to a method for discriminating a gamma component and a neutron component in an electronic signal (S1) that is the result of detecting gamma and/or neutron radiation, characterised in that said method includes the following steps: delaying (7) the signal by a time TAU and attenuating (8) the signal by a coefficient ALPHA (S1) in order to obtain a delayed and attenuated signal (S2); subtracting (9) the delayed and attenuated signal (S2) from the electronic signal (S1) in order to obtain a difference signal (S3) which includes a gamma component and/or a neutron component; and calculating (10) a magnitude sigma1, such that: sigma1 = T2?d S3(t) dt, where d is an instant at which the gamma component reaches zero and T2 is a predefined instant after the instant d selected such that, in an interval [dref, T2], the magnitude sigma1 is negative for a gamma component and positive for a neutron component.