Radial magnetic field measurements with a Hall probe device in the muon (g-2) storage ring magnet at BNL

S. I. Redin, N. M. Ryskulov, G. V. Fedotovich, B. I. Khazin, G. M. Bunce, G. T. Danby, J. W. Jackson, W. M. Morse, R. Prigl, Y. K. Semertzidis, E. Efstathiadis, B. L. Roberts, A. Grossmann, K. Jungmann, G. Zu Putlitz, P. Von Walter, S. K. Dhawan, F. J.M. Farley, M. Grosse-Perdekamp, V. W. HughesD. Kawall

Research output: Contribution to journalArticlepeer-review

Abstract

A Hall probe device has been built to measure the radial component of the magnetic field in the muon (g-2) storage ring at Brookhaven National Laboratory. The ultraprecise (g-2) magnet provides a dominantly vertical magnetic field of about 1.45 T. In order to limit the vertical shift of the muon orbit, the average radial field component should be no more than 5 × 10-5 of the vertical field. Our measurements with the Hall probe device achieved an accuracy of 1 × 10-5, which is one of the most precise measurements with Hall probes. This provides adequate accuracy for shimming and control of the radial field.

Original languageEnglish (US)
Pages (from-to)260-268
Number of pages9
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume473
Issue number3
DOIs
StatePublished - Nov 11 2001
Externally publishedYes

Keywords

  • Hall probe
  • Magnetic field measurement
  • Ultraprecise superferric magnet

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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