학술논문
Field Quality and Alignment of the Series Produced Superconducting Matching Quadrupoles for the LHC Insertions
Document Type
Conference
Author
Source
Proceedings of the 2005 Particle Accelerator Conference Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the. :2738-2740 2005
Subject
Language
ISSN
1944-4680
2152-9582
2152-9582
Abstract
The production of the superconducting quadrupoles for the LHC insertions is advancing well and about half of the magnets have been produced. The coil size and field measurements performed on individual magnets both in warm and cold conditions are yielding significant results. In this paper we present the procedures and results of steering the series production at the magnet manufacturers and the assembly of cold masses at CERN. In particular, we present the correlation between coil sizes and geometrical field errors, the effect of permeability of magnet collars, and the analysis of warm-cold correlations and hysteresis of the main field multipoles. The results are compared with the target values for field multipoles and quadrupole alignment.