System for detecting a pure signal from a noisy raw signal by suppressing the variable background noise

摘要

The system detects events occurring in a predetermined energy window. It carries out a count N2 for a time DELTA TS and a count N3 for a time DELTA Tb, where DELTA Tb = q DELTA TS and q is a positive number, during which no event corresponding to the expected pure signal is present. It evaluates the information contributed by the counts N2 and N3 for the chosen value of the coefficient q, or the probability of associated false detection, by comparison with at least one information threshold Im, each threshold being associated with a predetermined rate of false detection. The comparison can be made indirectly on a function of this probability and can use tabulated values. …??Application especially to the detection of corpuscular radiation. …IMAGE…