Cent Eur J Public Health 2006, 14(1):30-34 | DOI: 10.21101/cejph.a3363

Evaluation of Humans Exposure to Single Electromagnetic Pulses of Arbitrary Shape

Lukáš Jelínek¹, Luděk Pekárek^1,2

¹ National Reference Laboratory for Non-Ionising Electromagnetic Radiation, Rytířská 12, Prague 1, Czech Republic

² National Institute of Public Health, Prague, Czech Republic

Transient current density J(t) induced in the body of a person exposed to a single magnetic pulse of arbitrary shape or to a magnetic jump is filtered by a convolution integral containing in its kernel the frequency and phase dependence of the basic limit value adopted in a way similar to that used for reference values in the International Commission on Non-Ionising Radiation Protection statement. From the obtained time-dependent dimensionless impact function WJ(t) can immediately be determined whether the exposure to the analysed single event complies with the basic limit. For very slowly varying field, the integral kernel is extended to include the softened ICNIRP basic limit for frequencies lower than 4 Hz.

Keywords: exposure limits, exposure evaluation, pulsed magnetic field, pulsed body currents, non-ionizing radiation, low frequency field

Published: March 1, 2006  Show citation