Abstract: A feedback device for a gas ionisation particle detector that includes a high voltage generator capable of creating a potential difference between electrodes placed in a gas chamber. The feedback device includes a voltage regulator configured to calculate an indicator characteristic of a measurement signal output by an electronic read unit capable of collecting an electrical signal induced by a particle passing through the chamber and to modify a set voltage output to the high voltage generator as a function of the indicator characteristic of the measurement signal. The characteristic indicator may be an average amplitude. The feedback device can use an error signal corresponding to the difference between the calculated characteristic indicator and a predetermined value.

Abstract: The invention relates to feedback device (10) for a gas ionisation particle detector that comprises a high voltage generator (21) capable of creating a potential difference between electrodes placed in a gas chamber (20). The feedback device comprises a voltage regulator (11) configured to calculate an indicator characteristic of a measurement signal output by the electronic read unit (22) capable of collecting an electrical signal induced by a particle passing through the chamber and to modify a set voltage output to the high voltage generator (21) as a function of the indicator characteristic of the measurement signal. The characteristic indicator may be an average amplitude. The feedback can use an error signal corresponding to the difference between the calculated characteristic and a predetermined value.

Abstract: The multiplexed connection circuit (100) comprises a plurality of channels furnished with p channels (101), in particular configured so as to detect at least one particle, and a plurality of output pathways furnished with n output pathways (102), with p>n, each channel being connected to a lone output pathway (102). The circuit furthermore comprises groups of adjacent channels, each channel (101) of the connection circuit (100) belonging to at least one group of adjacent channels and each group of adjacent channels being defined by an assembly formed by the connections of the channels (101) of the group of adjacent channels to the corresponding output pathways (102), this assembly forming a group of output pathways which is associated with the group of adjacent channels, and each group of adjacent channels is associated with a single group of output pathways, different from that of the other groups of adjacent channels.

Abstract: The multiplexed connection circuit (100) comprises a plurality of channels furnished with p channels (101), in particular configured so as to detect at least one particle, and a plurality of output pathways furnished with n output pathways (102), with p>n, each channel being connected to a lone output pathway (102). The circuit furthermore comprises groups of adjacent channels, each channel (101) of the connection circuit (100) belonging to at least one group of adjacent channels and each group of adjacent channels being defined by an assembly formed by the connections of the channels (101) of the group of adjacent channels to the corresponding output pathways (102), this assembly forming a group of output pathways which is associated with the group of adjacent channels, and each group of adjacent channels is associated with a single group of output pathways, different from that of the other groups of adjacent channels.