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PIBALE (Plateforme d’Irradiation de Biomolécules et d’Agrégats Libres ou Environnés)

A new experimental set-up, dedicated to the study of large molecules (peptides), mass-selected biomolecular clusters or nanosolvated biomolecules, is currently in its final stage of development.

In this experimental set-up, the molecular ion beam is formed by an electrospray ionization source, collimated in an ion funnel before being mass-selected by a quadrupole mass filter. In order to increase the beam density before entering the collision zone, the selected ions are then accumulated and bunched in a 3D Paul trap using buffer gas cooling. This target beam then crosses a keV atomic ion beam produced by an ECR ion-source. The projectile ion beam is shaped by a quadrupole triplet to maximize the beam overlap. Charged fragments created by the collision are then analyzed by a vertical time-of-flight mass spectrometer and collected on a position-sensitive detector allowing kinematic analysis of the main ion-induced fragmentation channels.

Contact : Alain Méry, Jean-Christophe Poully, Jimmy Rangama, Violaine Vizcaino
PhD : Lucas Schwob, Mathieu Lalande