caa a22 4500 397504144 CHVBK 20180308164540.0 cr unu---uuuuu 161202e19951101xx s 000 0 eng 10.1093/oxfordjournals.rpd.a082840 doi 0144-8420 pii (NATIONALLICENCE)oxford-10.1093/oxfordjournals.rpd.a082840 An Investigation of Build-Up Effects in High-Energy Radiation Fields Using a HANDI TEPC [Elektronische Daten] [A. Aroua, M. Höfert, A.V. Sannikov, G.R. Stevenson, C. Vaerman] ICRP considers that a dose limit of 2 mSv close to the body surface of a pregnant woman will ensure a dose limit of 1 mSv to the foetus. This assumption depends on the energy spectrum and composition of the radiation fields, especially those containing high energy particles such as are found around particle accelerators or in aircraft. In this work the response of a tissue-equivalent proportional counter in radiation fields of different composition and energy was measured as a function of depth in cylindrical phantoms. The decrease in dose and dose equivalent at a phantom depth equivalent to that of a foetus was 10% in a typical high energy stray radiation field and 30% for neutrons from a Pu-Be source. It is concluded that it would be prudent in these cases to limit the exposure of a pregnant woman to 1 mSv in order to ensure that the dose to the foetus stays below the same limit. Radiation Protection Dosimetry Aroua A. aut Höfert M. aut Sannikov A.V. aut Stevenson G.R. aut Vaerman C. aut Radiation Protection Dosimetry Oxford University Press 62/3(1995-11-01), 171-173 0144-8420 62:3<171 1995 62 rpd https://doi.org/10.1093/oxfordjournals.rpd.a082840 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.rpd.a082840 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Aroua A. aut NATIONALLICENCE 700 1- Höfert M. aut NATIONALLICENCE 700 1- Sannikov A.V. aut NATIONALLICENCE 700 1- Stevenson G.R. aut NATIONALLICENCE 700 1- Vaerman C. aut NATIONALLICENCE 773 0- Radiation Protection Dosimetry Oxford University Press 62/3(1995-11-01), 171-173 0144-8420 62:3<171 1995 62 rpd Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford