Bibliographic Details
| Title: |
The CMS Magnetic Field Map Performance. |
| Authors: |
Klyukhin, V. I.1 Vyacheslav.Klyukhin@cern.ch, Amapane, N.2 Nicola.Amapane@cern.ch, Andreev, V.3 Valeri.Andreev@cern.ch, Ball, A.4 Austin.Ball@cern.ch, Curé, B.4, Hervé, A.4, Gaddi, A.4, Gerwig, H.4, Karimaki, V.5 Veikko.Karimaki@cern.ch, Loveless, R.6 loveless@hep.wisc.edu, Mulders, M.4, Popescu, S.7 Sorina.Popescu@cern.ch, Sarycheva, L. I.8 lis@alex.sinp.msu.ru, Virdee, T.4 |
| Source: |
IEEE Transactions on Applied Superconductivity. Jun2010, Vol. 20 Issue 3, p152-155. 4p. |
| Subjects: |
Solenoids, Magnetic fields, Magnetic flux, Hall Héroult process, Nuclear magnetic resonance |
| Abstract: |
The Compact Muon Solenoid (CMS) is a general-purpose detector designed to run at the highest luminosity at the CERN Large Hadron Collider (LHC). Its distinctive features include a 4 T superconducting solenoid with 6 m diameter by 12.5 m long free bore, enclosed inside a 10000-ton return yoke made of construction steel. Accurate characterization of the magnetic field everywhere in the CMS detector is required. During two major tests of the CMS magnet the magnetic flux density was measured inside the coil in a cylinder of 3.448 m diameter and 7 m length with a specially designed field-mapping pneumatic machine as well as in 140 discrete regions of the CMS yoke with NMR probes, 3-D Hall sensors and flux-loops. A TOSCA 3-D model of the CMS magnet has been developed to describe the magnetic field everywhere outside the tracking volume measured with the field-mapping machine. A volume based representation of the magnetic field is used to provide the CMS simulation and reconstruction software with the magnetic field values. The value of the field at a given point of a volume is obtained by interpolation from a regular grid of values resulting from a TOSCA calculation or, when available, from a parameterization. The results of the measurements and calculations are presented, compared and discussed. [ABSTRACT FROM AUTHOR] |
|
Copyright of IEEE Transactions on Applied Superconductivity is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Database: |
Engineering Source |
