skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Magnetic Source Imaging Using a Pulsed Optically Pumped Magnetometer Array

Abstract

In this paper, we have developed a pulsed optically pumped magnetometer (OPM) array for detecting magnetic field maps originated from an arbitrary current distribution. The presented magnetic source imaging (MSI) system features 24-OPM channels has a data rate of 500 S/s, a sensitivity of 0.8 pT/√ Hz, and a dynamic range of 72 dB. We have employed our pulsed-OPM MSI system for measuring the magnetic field map of a test coil structure. The coils are moved across the array in an indexed fashion to measure the magnetic field over an area larger than the array. The captured magnetic field maps show excellent agreement with the simulation results. Finally, assuming a 2-D current distribution, we have solved the inverse problem using the measured magnetic field maps, and the reconstructed current distribution image is compared with that of the simulation.

Authors:
ORCiD logo [1];  [1];  [2];  [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Kansas City National Security Campus, Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20); National Inst. of Health (NIH) (United States)
OSTI Identifier:
1467028
Report Number(s):
SAND-2018-2741J
Journal ID: ISSN 0018-9456; 661414
Grant/Contract Number:  
NA0003525; R01EB013302
Resource Type:
Accepted Manuscript
Journal Name:
IEEE Transactions on Instrumentation and Measurement
Additional Journal Information:
Journal Volume: 68; Journal Issue: 2; Journal ID: ISSN 0018-9456
Publisher:
IEEE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; current distribution imaging; magnetic field map; magnetic source imaging (MSI); magnetometer; OPM; spin-exchange-relaxation-free (SERF)

Citation Formats

Borna, Amir, Carter, Tony R., DeRego, Paul, James, Conrad D., and Schwindt, Peter D. D. Magnetic Source Imaging Using a Pulsed Optically Pumped Magnetometer Array. United States: N. p., 2018. Web. doi:10.1109/tim.2018.2851458.
Borna, Amir, Carter, Tony R., DeRego, Paul, James, Conrad D., & Schwindt, Peter D. D. Magnetic Source Imaging Using a Pulsed Optically Pumped Magnetometer Array. United States. doi:10.1109/tim.2018.2851458.
Borna, Amir, Carter, Tony R., DeRego, Paul, James, Conrad D., and Schwindt, Peter D. D. Mon . "Magnetic Source Imaging Using a Pulsed Optically Pumped Magnetometer Array". United States. doi:10.1109/tim.2018.2851458. https://www.osti.gov/servlets/purl/1467028.
@article{osti_1467028,
title = {Magnetic Source Imaging Using a Pulsed Optically Pumped Magnetometer Array},
author = {Borna, Amir and Carter, Tony R. and DeRego, Paul and James, Conrad D. and Schwindt, Peter D. D.},
abstractNote = {In this paper, we have developed a pulsed optically pumped magnetometer (OPM) array for detecting magnetic field maps originated from an arbitrary current distribution. The presented magnetic source imaging (MSI) system features 24-OPM channels has a data rate of 500 S/s, a sensitivity of 0.8 pT/√ Hz, and a dynamic range of 72 dB. We have employed our pulsed-OPM MSI system for measuring the magnetic field map of a test coil structure. The coils are moved across the array in an indexed fashion to measure the magnetic field over an area larger than the array. The captured magnetic field maps show excellent agreement with the simulation results. Finally, assuming a 2-D current distribution, we have solved the inverse problem using the measured magnetic field maps, and the reconstructed current distribution image is compared with that of the simulation.},
doi = {10.1109/tim.2018.2851458},
journal = {IEEE Transactions on Instrumentation and Measurement},
number = 2,
volume = 68,
place = {United States},
year = {2018},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

Save / Share: