Hamburg 2016 – scientific programme
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T: Fachverband Teilchenphysik
T 8: Myondetektoren I
T 8.2: Talk
Monday, February 29, 2016, 11:15–11:30, VMP6 HS E
MMSW - A large-size micromegas quadruplet prototype: Mechanical Accuracy and Basic Performance Parameters — •Ourania Sidiropoulou1,2, Michele Bianco1, Hans Danielsson1, Jordan Degrange1, Rui De Oliveira1, Edoardo Farina4, Fabian Kuger1,2, Paolo Iengo1, Francisco Perez Gomez1, Givi Sekhniaidze5, Federico Sforza1, Maurice Vergain1, Joerg Wotschack1, Andreas Düdder3, Tai-Hua Lin3, Matthias Schott3, and Chrysostomos Valderanis3 — 1CERN, Switzerland — 2University of Wuerzburg, Germany — 3University of Mainz, Germany — 4University of Pavia, Italy — 5INFN and University of Naples, Italy
Two Micromegas quadruplet prototypes chambers (MMSW) following the general design foreseen for the ATLAS forward muon spectrometer upgrade were constructed and tested at CERN and the University of Mainz. These are the first Micromegas quadruplets ever built.
We report on the mechanical accuracy comprising measurements of the planarity and the alignment of the two faces of a panel as well as panel to panel alignment. Furthermore basic performance parameters such as gain homogeneity after assembly have been tested with cosmic muons and X-ray measurements. These testing procedures, established with the MMSW prototypes, will become part of the quality control and validation procedure for the mass production of the Micromegas New Small Wheel detectors.