Field mapping of the Hall A high-resolution spectrometers of the Thomas Jefferson National Accelerator Facility (Jefferson Lab)

This paper reports on the magnetic field mapping performed on the HRS spectrometers of Hall A, which are of QQDQ type. The dipoles were measured with a set of Hall probes in the symmetry mid-plane. The quadrupoles were measured inside their whole volume by a set of axially segmented rotating coils....

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Detalles Bibliográficos
Autores principales: Vernin, P, Le Bars, J, Fonvieille, H, Quéméner, G, Le Rose, J J, Hogan, J, Vlahovic, B, Billan, J
Lenguaje:eng
Publicado: 2000
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.1016/S0168-9002(00)00148-0
http://cds.cern.ch/record/785474
Descripción
Sumario:This paper reports on the magnetic field mapping performed on the HRS spectrometers of Hall A, which are of QQDQ type. The dipoles were measured with a set of Hall probes in the symmetry mid-plane. The quadrupoles were measured inside their whole volume by a set of axially segmented rotating coils. High accuracy has been reached in both cases. Dipoles and quadrupoles were measured for a set of ex citation currents covering the operating momentum range of the HRS: 0.5-4 GeV/c. The main results on field determination are presented.

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