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Author: Oliver Pooth
Publisher: Springer Science & Business Media
ISBN: 383489639X
Category : Science
Languages : en
Pages : 147
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Book Description
Oliver Pooth describes the silicon strip tracker of the CMS detector and discusses methods of quality control that are new to the field of particle detector physics. These methods were established to guarantee a uniform behaviour of all detector modules which were built and tested in various places worldwide.
Author: Oliver Pooth
Publisher: Springer Science & Business Media
ISBN: 383489639X
Category : Science
Languages : en
Pages : 147
Get Book Here
Book Description
Oliver Pooth describes the silicon strip tracker of the CMS detector and discusses methods of quality control that are new to the field of particle detector physics. These methods were established to guarantee a uniform behaviour of all detector modules which were built and tested in various places worldwide.
Author: Markus Friedl
Publisher:
ISBN:
Category :
Languages : en
Pages : 272
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Book Description
Author: Roberto Della Marina
Publisher:
ISBN:
Category :
Languages : en
Pages : 232
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Book Description
Author: Richard Bremer
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 45
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Book Description
Author: Guido Dirkes
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ISBN:
Category :
Languages : en
Pages : 149
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 6010
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Book Description
In March 2007 the assembly of the Silicon Strip Tracker was completed at the Tracker Integration Facility at CERN. Nearly 15% of the detector was instrumented using cables, fiber optics, power supplies, and electronics intended for the operation at the LHC. A local chiller was used to circulate the coolant for low temperature operation. In order to understand the efficiency and alignment of the strip tracker modules, a cosmic ray trigger was implemented. From March through July 4.5 million triggers were recorded. This period, referred to as the Sector Test, provided practical experience with the operation of the Tracker, especially safety, data acquisition, power, and cooling systems. This paper describes the performance of the strip system during the Sector Test, which consisted of five distinct periods defined by the coolant temperature. Significant emphasis is placed on comparisons between the data and results from Monte Carlo studies.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 7002
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Book Description
The results of the CMS tracker alignment analysis are presented using the data from cosmic tracks, optical survey information, and the laser alignment system at the Tracker Integration Facility at CERN. During several months of operation in the spring and summer of 2007, about five million cosmic track events were collected with a partially active CMS Tracker. This allowed us to perform first alignment of the active silicon modules with the cosmic tracks using three different statistical approaches; validate the survey and laser alignment system performance; and test the stability of Tracker structures under various stresses and temperatures ranging from +15C to -15C. Comparison with simulation shows that the achieved alignment precision in the barrel part of the tracker leads to residual distributions similar to those obtained with a random misalignment of 50 (80) microns in the outer (inner) part of the barrel.
Author: Lorenzo Masetti
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author:
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ISBN:
Category :
Languages : en
Pages :
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Book Description
The CMS tracker consists of 206 square meters of silicon strip sensors assembled on carbon fibre composite structures and is designed for operation in the temperature range from -25 to +25 degrees C. The mechanical stability of tracker components during physics operation was monitored with a few micron resolution using a dedicated laser alignment system as well as particle tracks from cosmic rays and hadron-hadron collisions. During the LHC operational period of 2011-2013 at stable temperatures, the components of the tracker were observed to experience relative movements of less than 30 microns. In addition, temperature variations were found to cause displacements of tracker structures of about 2 microns/degree C, which largely revert to their initial positions when the temperature is restored to its original value.
