15 Mrad ionizing radiation dose effect on GEMINI

摘要

The GEMINI front-end system that will operate at LoKI experiment at ESS is expected to be exposed to radiation for a Total Ionizing Dose (TID) up to 200krad during Triple-GEM detector usage. Analyzing the effect of ionizing radiation on chip gives important information on its robustness, critical for architecture validation. After irradiation with a total dose of 15 Mrad core elements of GEMINI channels still resulted to be functional. This indicates the possibility of using such devices also in other experiments where it would be exposed to higher TID. The test also highlighted few critical points of the architecture that could be starting point to improve Triple-GEM front-end system radiation hardness.