A GEM Detector System for an Upgrade of the CMS Muon Endcaps
A GEM Detector System for an Upgrade of the CMS Muon Endcaps
A GEM Detector System for an Upgrade of the CMS Muon Endcaps
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Figure 3: CATIA model <strong>of</strong> <strong>the</strong> <strong>CMS</strong> endcap structure <strong>for</strong> GE1/1 chambers (top) <strong>an</strong>d GE2/1 Chambers (bottom).<br />
For <strong>the</strong> GE1/1 station <strong>the</strong> chambers will be installed on <strong>the</strong> YE1 “nose”. For <strong>the</strong> GE2/1 station, which sits exactly<br />
on <strong>the</strong> backside <strong>of</strong> YE1 “nose”, <strong>the</strong>re will be two sets <strong>of</strong> chambers long <strong>an</strong>d short due to <strong>the</strong> neutron shielding that<br />
sits between 2.1 < |η| < 2.4. Since <strong>the</strong>re is room <strong>for</strong> long chambers in z, <strong>the</strong> 2/1 station <strong>of</strong>fers 4 measurements<br />
points from eta1.6 < |η| < 2.1 <strong>an</strong>d two measurements points from 2.1 < |η| < 2.4.<br />
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