Bonn 2010 – wissenschaftliches Programm
HK 21.4: Vortrag
Dienstag, 16. März 2010, 15:00–15:15, HG VIII
Annealing studies with ionizing, non-ionizing and combined radiation irradiated Monolithic Active Pixel Sensors* — •Dennis Doering1, Michael Deveaux1, Melissa Domachowski1, Christian Müntz1, Sarah Ottersbach1, Joachim Stroth1, and Franz M. Wagner2 — 1Institut für Kernphysik Goethe Universität, Frankfurt am Main — 2Forschungsneutronenquelle Heinz-Maier-Leibnitz (FRM II), Technische Universität München
CMOS Monolithic Active Pixel Sensors (MAPS) provide an outstanding combination of excellent spatial resolution (few µ m) and very light, thin ( <0.05 % X0) material budget. Their use is foreseen in the vertex detectors of various experiments in heavy ion and particle physics. Among them is CBM. In order to handle the harsh radiation doses expected in this experiment the CBM-MVD collaboration undertakes intense R&D on the radiation hardness of MAPS.
In this context, we performed for a first time a systematic annealing study for MAPS being irradiated with X-rays, neutrons and a combination of both. The results will be presented and the feasibility of regenerating an irradiated CBM vertex detector by means of thermo cycling will be discussed.
*supported by BMBF (06FY173l;06FY9099I) and GSI (F&E)