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Pulsed-Mode Magnetic Field Measurements with a Single Stretched Wire System.

Joseph Vella Wallbank1, Marco Buzio2, Alessandro Parrella2

  • 1Department of Microelectronics and Nanoelectronics, Universita ta' Malta, MSD 2080 Msida, Malta.

Sensors (Basel, Switzerland)
|July 27, 2024
PubMed
Summary

A new pulsed single stretched wire (SSW) method measures time-varying magnetic fields in synchrotrons. This technique enhances efficiency for characterizing bending magnets, crucial for beam stability.

Keywords:
bending magnetinduction coil calibrationmagnetic field measurementsparticle acceleratorssingle stretched wire

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Area of Science:

  • Particle Accelerators
  • Magnet Technology
  • Experimental Physics

Background:

  • Accurate magnetic field characterization is vital for synchrotron beam stability.
  • Traditional magnetic field measurement methods often involve trade-offs between accuracy and versatility.
  • The single stretched wire (SSW) method is versatile but requires steady-state magnet excitation.

Purpose of the Study:

  • To introduce and validate a novel pulsed single stretched wire (SSW) method for measuring time-varying magnetic fields.
  • To enable rapid magnetic field measurements in synchrotrons, improving efficiency and saving power.
  • To provide a more versatile tool for characterizing bending dipole magnets.

Main Methods:

  • Development of the pulsed single stretched wire (SSW) measurement principle.
  • Integration of the pulsed SSW with the classic DC SSW method for absolute magnetic field calculation.
  • Case study using a bending magnet from the Proton Synchrotron Booster at CERN.
  • Comparison of pulsed SSW dynamic measurements with a fixed induction coil.

Main Results:

  • The pulsed SSW method successfully measures rapidly time-varying magnetic fields.
  • Coil calibration adjustments are necessary based on field levels when using induction coils.
  • The pulsed SSW method demonstrates comparable accuracy to the standard SSW method.
  • Primary noise contributors to the pulsed SSW measurements were identified and analyzed.

Conclusions:

  • The pulsed SSW method offers a viable solution for dynamic magnetic field measurements in synchrotrons.
  • This novel approach enhances measurement efficiency and flexibility for magnet characterization.
  • The pulsed SSW method contributes to improved beam stability through accurate, rapid field analysis.