Design and Performance of the Alignment System for the CMS Muon Endcaps

被引：0

作者：

Hohlmann, Marcus ^{[1
]}

Baksay, Gyoegyi ^{[1
]}

Browngold, Max ^{[1
]}

Dehmelt, Klaus ^{[1
]}

Guragain, Samir ^{[1
]}

Andreev, Valery ^{[2
]}

Yang, Xiaofeng ^{[2
]}

Bellinger, James ^{[3
]}

Carlsmith, Duncan ^{[3
]}

Feyzi, Farshid ^{[3
]}

Loveless, Richard J. ^{[3
]}

Northacker, David ^{[3
]}

Case, Michael ^{[4
]}

Eartly, David P. ^{[5
]}

Prokofiev, Oleg ^{[5
]}

Sknar, Vladimir ^{[6
]}

Sytnik, Valeri ^{[7
]}

机构：

[1] Florida Inst Technol, Dept Phys & Space Sci, Melbourne, FL 32901 USA

[2] Univ Calif Los Angeles, Dept Phys, Los Angeles, CA 90024 USA

[3] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[4] Univ Calif Davis, Dept Phys, Davis, CA USA

[5] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[6] Petersburg Nucl Phys Inst, St Petersburg, Russia

[7] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA

来源：

2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6 | 2006年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The alignment system for the CMS Muon Endcap detector employs several hundred sensors such as optical 1-D CCD sensors illuminated by lasers and analog distance- and tilt-sensors to monitor the positions of one sixth of 468 large Cathode Strip Chambers. The chambers mounted on the endcap yoke disks undergo substantial deformation on the order of centimeters when the 4T field is switched on and off. The Muon Endcap alignment system is required to monitor chamber positions with 75-200 mu m accuracy in the R phi plane, similar to 400 mu m in the radial direction, and similar to 1 mm in the z-direction along the beam axis. The complete alignment hardware for one of the two endcaps has been installed at CERN. A major system test was performed when the 4T solenoid magnet was ramped up to full field for the first time in August 2006. We present the overall system design and first results on disk deformations, which indicate that the measurements agree with expectations.

引用

页码：489 / 495

页数：7

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