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Long-term monitoring of aircrew exposure onboard of Czech Airlines aircraft

Published online by Cambridge University Press:  28 February 2007

O. Ploc  and
F. Spurný
O. Ploc
Affiliation:
Nuclear Physics Institute AS CR, Dept. of Radiation Dosimetry, Na Truhláøce 39/64, 180 86 Prague 8, Czech Republic Czech Technical University, Dept. of Dosimetry and Application of Ionizing Radiation, Bøehová 7, 115 19 Prague 1, Czech Republic
F. Spurný
Affiliation:
Nuclear Physics Institute AS CR, Dept. of Radiation Dosimetry, Na Truhláøce 39/64, 180 86 Prague 8, Czech Republic
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Abstract

This contribution presents new results related to the aircraft crew exposure onboard aircraft of Czech air companies. First, the results of long term monitoring onboard of an aircraft of Czech Airlines are presented. In the period May–December 2005, 494 individual flights have been followed using MDU-Liulin Si-diode based spectrometer, together with thermoluminescent and track detectors. The results of measurements are analyzed and compared with those of calculation performed with CARI6 and EPCARD3.2 codes. Monitoring period represented about 4.6 times more than usual annual engagement of an aircrew (600 hours). Total effective dose during these 2 755 hours was between 11 and 12 mSv, following the considered method of evaluation. Both the measuring and calculation methods correlate well. This fact leads to confirmation of the routine method evaluating the level of aircraft crew exposure using CARI6 code as correct for this purpose. Second, the results of individual monitoring of aircrew members obtained during few last years by this routine method are presented; general tendencies of aircraft crew onboard exposure of Czech air companies are outlined. The contribution of aircrew exposure to total occupational exposure in the Czech Republic represents about 20%.

Keywords

cosmic radiationaircraft crew exposure and monitoringSi-detectorenergy deposition spectrometer
Type
Research Article
Information
Radioprotection , Volume 42 , Issue 1 , January 2007 , pp. 65 - 74
Copyright
© EDP Sciences, 2007

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