Systematic optimization of exterior measurement locations for the determination of interior magnetic field vector components in inaccessible regions

N. Nouri, B. Plaster

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

An experiment may face the challenge of real-time determination of the magnetic field vector components present within some interior region of the experimental apparatus over which it is impossible to directly measure the field components during the operation of the experiment. As a solution to this problem, we propose a general concept which provides for a unique determination of the field components within such an interior region solely from exterior measurements at fixed discrete locations. The method is general and does not require the field to possess any type of symmetry. We describe our systematic approach for optimizing the locations of these exterior measurements which maximizes their sensitivity to successive terms in a multipole expansion of the field.

Original languageEnglish
Pages (from-to)92-98
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume767
DOIs
StatePublished - Dec 11 2014

Bibliographical note

Funding Information:
We thank C. Crawford, B. Filippone, and W. Korsch for several valuable suggestions regarding the development of our concept. We thank M.P. Mendenhall for providing the field map of the cos θ coil we used in our example calculations, and we are grateful to A. Kucharski, Jr. for a careful reading of the manuscript. This work was supported in part by the U.S. Department of Energy Office of Nuclear Physics under Award No. DE-FG02-08ER41557 .

Publisher Copyright:
© 2014 Elsevier B.V.

Keywords

  • Electric dipole moment experiments
  • Interior magnetic field gradients
  • Interior magnetic field vector components
  • Multipole methods

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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