CERN Accelerating science

Internal Note
Report number	CERN-ATS-Note-2012-035 TECH
Title	Magnetic measurements of a CEA/IPHI 28.5° dipole for the Linac4 diagnostic beam line
Author(s)	Buzio, M (CERN) ; Cote, D (CERN) ; Chritin, R (CERN) ; Galbraith, P (CERN) ; Giloteaux, D (CERN)
Corporate author(s)	CERN. Geneva. ATS Department
Publication	2012
Imprint	27 Mar 2012
Number of pages	10
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	CERN Linac4
Keywords	magnetic measurement ; spectrometer dipole ; open-loop field control
Abstract	This reports summarizes the results of a recent test campaign carried out on a spectrometer dipole for the Linac4 diagnostic line. These results include point-like measurements done with NMR and Hall effect probes and are intended as a cross-check of a more extensive campaign carried out at Sigma Phi. They are aimed specifically at the issue of the reproducibility of the field on different cycling conditions. In the Appendix, a field control algorithm which can be used to guarantee the requested 0.1% reproducibility is spelled out in full detail.
Submitted by	[email protected]