Investigation of Single Event Latch-up effects in the ALICE SAMPA ASIC

Abstract

During RUN 3 and RUN 4 at the Large Hadron Collider (LHC), the SAMPA chip will be used in the upgraded front end electronics of the ALICE (A Large Ion Collider Experiment) Time Projection Chamber (TPC) and Muon Chambers (MCH). Previously, it was reported that the SAMPA V2 prototypes were susceptible to the high energy proton induced Single Event Latch-up (SEL) events. Further irradiation campaigns were required to find the source of SEL events in SAMPA V2 prototypes, and to verify that the SEL sensitivity of final versions (V3 and V4) of the SAMPA chip was reduced or even completely removed. The irradiation campaigns were performed using the Heavy-Ion Facility (HIF) at UCL (Universitè Catholique de Louvain) in Belgium and the Single-Photon laser facility at IES (Institute of Electronics and Systems), Montpellier-France.