کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1830230 | 1027475 | 2008 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The CMS Tracker End-Caps integration The CMS Tracker End-Caps integration](/preview/png/1830230.png)
The two CMS Tracker End-Caps (TECs) consist of nine disks each, totalling 6400 silicon modules mounted on 288 intermediate sub-structures: the “petals”, a carbon fiber plated honeycomb support which carries up to 28 modules arranged in seven radial rings. One of the TECs has been integrated at CERN by IPN Lyon, while the second one was assembled in RWTH-Aachen I. This contribution describes in detail the integration procedures, including: the qualification of petals before insertion, the sector by sector (18 petals) mechanical integration inside the TEC structure and the commissioning at room temperature and in the cold at -20∘-20∘. The problems encountered during the whole assembly procedure and their solutions will be reported as well as the final performance of the two TECs. Both are now integrated in the CMS Tracker tube together with the Inner and Outer Barrel part. We will show the noise performance obtained under these conditions.
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 596, Issue 1, 21 October 2008, Pages 13–16