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Mainz 2014 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 44: Detektorsysteme 2

T 44.4: Vortrag

Montag, 24. März 2014, 17:30–17:45, GFH 01-721

Charge Collection Efficiency Measurements on ATLAS12 Sensors — •Alexander Morton1, Ingrid-Maria Gregor2, and Kerstin Tackmann31DESY — 2DESY — 3DESY

The ATLAS experiment is a general purpose particle physics experiment that records collision events produced by the LHC. The ATLAS experiment will be upgraded in three phases in the next decade. The last phase among other things will involve the installation of a whole new silicon tracker consisting of strips and pixels. The silicon strip tracker is expected to receive fluences of about 1.2x1015 1 MeV neq/cm2 over the course of its lifetime of eight to ten years in the high luminosity LHC.

To determine how the the upgraded silicon strip sensors signal to noise ratio will develop with radiation damage, ATLAS12 silicon strip sensors have been irradiated to a range of fluences with neutrons. Charge collection efficiency (CCE) measurements have been performed on these sensors using an electron beam of 4.4 GeV and correlated hits from a MIMOSA pixel telescope at the DESY test beam.

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