A comparison of foetal SAR in three sets of pregnant female models.
This paper compares the foetal SAR in the HPA hybrid mathematical phantoms with the 26-week foetal model developed at the National Institute of Information and Communications Technology, Tokyo, and the set of 13-, 26- and 38-week boundary representation models produced at Rensselaer Polytechnic Institute. FDTD calculations are performed at a resolution of 2 mm for a plane wave with a vertically aligned electric field incident upon the body from the front, back and two sides from 20 MHz to 3 GHz under isolated conditions. The external electric field values required to produce the ICNIRP public exposure localized restriction of 2 W kg(-1) when averaged over 10 g of the foetus are compared with the ICNIRP reference levels.
Radiation Protection Division, Health Protection Agency, Chilton, Didcot, OX11 0RQ, UK. peter.dimbylow@hpa.org.uk
Peter J
PJ
Dimbylow
Tomoaki
T
Nagaoka
X George
XG
Xu
D000042:Absorption; D005260:Female; D005333:Fetus / Q000502:physiology / Q000528:radiation effects*; D005865:Gestational Age; D006801:Humans; D007390:International Agencies / Q000592:standards; D008954:Models, Biological; D009035:Mothers; D019047:Phantoms, Imaging; D011247:Pregnancy; D011835:Radiation Protection / Q000592:standards; D012016:Reference Values; D013696:Temperature