Abstract: A system for sampling biological tissue from a zone of interest receiving a biomarker prior to or simultaneously with surgery includes an excision head connected to a receptacle for the tissue samples by a suction transfer tube, a detection sleeve surrounding a reference zone of the suction transfer pipe, the detection sleeve comprising at least one sensor sensitive to the biomarker, and an electronic circuit delivering an electrical signal representative of the presence or absence of a marker when a tissue sample passes through the reference zone.

Abstract: A system for characterising a beam of charged particles. The system includes a stack comprising an ultra-thin pattern formed from an electrically conductive material; a thin substrate bearing the pattern. The stack forms an emitting electrode able to emit secondary electrons in proximity to a surface of the pattern when the emitting electrode is passed through by the beam of charged particles.

Abstract: A system for characterising a beam of charged particles. The includes a stack comprising an ultra-thin pattern formed from an electrically conductive material; a thin substrate bearing the pattern. The stack forms an emitting electrode able to emit secondary electrons in proximity to a surface of the pattern when the emitting electrode is passed through by the beam of charged particles.