Measuring multifrequency magnetic fields for exposure assessment based on induced body currents

Details

• Personal Author:
  Bowman, Joseph D.
• Description:
  A study was conducted on the use of multifrequency magnetic field measurements in determinations of exposure limits for magnetic fields in the subradio frequency (subRF) range. The basis for the calculation of multifrequency exposure limits using previously established limits for magnetic fields with a single subRF frequency was described. Limits on induced current were demonstrated to be equivalent to placing restrictions on the derivative of the magnetic field. Two methods were presented for measuring the magnetic field derivative in multifrequency environments using commercially available equipment. These methods involved the calculation of the derivative from a measurement of the frequency spectrum obtained from instruments which measured components of the time dependent magnetic field expanded as a Fourier series, or application of a correction factor to the readout of a gaussmeter with a linear frequency response. Description provided by NIOSH
• Subjects:
  • Magnetic Fields
  • Occupational Health
  • Radiation
  • Safety
• Keywords:
  • NIOSH-Author
  • Magnetic-fields
  • Electromagnetic-radiation
  • Biophysics
  • Permissible-limits
  • Mathematical-models
  • Exposure-limits
• ISSN:
  1047-322X
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DBBS - Division of Biomedical and Behavioral Sciences
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  10
• Issue:
  7
• NIOSHTIC Number:
  nn:00227994
• Citation:
  Appl Occup Environ Hyg 1995 Jul; 10(7):628-634
• Contact Point Address:
  Joseph D. Bowman, Radiation Section, Division of Biomedical and Behavioral Science, National Institute for Occupational Safety and Health, Cincinnati, Ohio 45226
• Federal Fiscal Year:
  1995
• Peer Reviewed:
  True
• Source Full Name:
  Applied Occupational and Environmental Hygiene
• Download URL:
  https://stacks.cdc.gov/view/cdc/205082/cdc_205082_DS1.pdf
• File Type:
  [PDF - 887.10 KB]
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:8385e2744465e46af52eb89b4133438d932b485880e641433255091ae55e85a4e84180bcfc678206edfdb510bb62db864cb6d600ec8d5a89113f41042ba5c4a0