Abstract: A device for estimating a position of a radioactive source, comprising: a holder; and at least two radiation detectors configured to generate a detection signal, the device being such that, each detector being assigned a position, the detectors are placed around an iso-centroid of each position, i.e., a centroid of each position equally weighted. The device also includes processing circuitry configured to compute a centroid of each position weighted by the detection signal measured by each detector; and depending on the centroid, estimate a direction pointing toward the source, corresponding to a direction between the device and the source.

Abstract: A system for processing a noisy time signal having a set of pulses of different amplitude and duration, and a method implemented by the system. The system includes a processor processing the signal acquired by a detector to detect the pulses, the processing being configured to perform a derivation of the acquired signal and compare the derived acquired signal with a pulse start detecting threshold to detect a pulse when the derived acquired signal is greater than the threshold. The processor is further configured to dynamically adapt the threshold to the noise level affecting the derived acquired signal.