Author: Mainaud Durand, H.
Paper Title Page
MOPE15 Cam Mover Alignment System Positioning with Wire Position Sensor Feedback for CLIC 32
 
  • J. Kemppinen, Z.S. Kostka, H. Mainaud Durand
    CERN, Geneva, Switzerland
  • J. Kemppinen
    ETH, Zurich, Switzerland
 
  Compact Linear Collider (CLIC) is a study of an electron-positron collider with nominal energy of 3 TeV and luminosity of 2·1034 cm-2·s-1. The luminosity goal leads to stringent alignment requirements for single quadrupole magnets. Vertical and lateral offset deviations with regards to a given orbit reference in both ends of a quadrupole shall be below 1 µm and quadrupole roll deviation shall be below 100 µrad. Translation in the direction of particle beam is not controlled but mechanically locked. A parallel kinematic platform based on cam movers was chosen as system for detailed studies. Earlier studies have shown that cam movers can reach the CLIC requirements through an iterative process. The paper presents new modular off-the-shelf control electronics and software including three optional positioning algorithms based on iterations as well as a more advanced algorithm which can reach target position in one movement. The advanced algorithm reads wire position sensors (WPS), calculates quadrupole orientation based on the readings and updates the remaining trajectory during motion. All of the optional positioning methods reach the CLIC positioning requirements within minutes.  
poster icon Poster MOPE15 [0.425 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2016-MOPE15  
About • paper received ※ 09 September 2016       paper accepted ※ 14 September 2016       issue date ※ 22 June 2017  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)