Ionizing radiation detection device with a semi-conductor detector having and improved spectrometric response

摘要

An ionizing radiation detection device including a detector of semi-conductor material intended to be biased thanks to electrodes, among which reading electrodes connected to a reading circuit process signals they provide to reject those causing a poor spectrometric response, that is those affected by an induction share and possibly those affected by a charge or electronic noise share.

主权项

1. An ionizing radiation detection device comprising:
a detector of semi-conductor material to be biased with electrodes, including reading electrodes capable of collecting charges created in the detector during an interaction between the ionizing radiation and the semi-conductor material of the detector and which are connected to a reading circuit; first processing means for providing a pulse when a charge has been collected by one of the reading electrodes, the pulse being formed with respect to a baseline, second means for processing the pulse provided by the first processing means including:
means for determining a parameter comprising a time parameter of the pulse or an amplitude value of the pulse after a baseline crossing between the start and the end of the pulse,means for rejecting the whole pulse depending on the value of said parameter and for preserving the pulse if it is not rejected, and means for operating the pulse preserved by the rejecting means.