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 language | English (US) |
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Pages (from-to) | 260-268 |
Number of pages | 9 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 473 |
Issue number | 3 |
DOIs | |
State | Published - Nov 11 2001 |
Externally published | Yes |
Keywords
- Hall probe
- Magnetic field measurement
- Ultraprecise superferric magnet
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation