Dose assessment of aircraft crew in the Netherlands
Abstract
INTRODUCTION According to Dutch legislation the radiation dose of aircraft crew, both ï¬ight deck and cabin crew, must be assessed and registered with the National Dose Registration and Information System (NDRIS). Aircraft crew that always ï¬y below 8 km of altitude are excepted from this regulation. The Dutch regulations do not address solar particle events or coronal mass ejections and these are also not taken into account in this study as are accompanying effects like the Forbush decrease (2). For assessing the dose of aircraft crew on a speciï¬c ï¬ight, a ï¬ight proï¬le and a dose calculation program is needed. For periodic monitoring of aircraft crew a system must be built that involves the interchange of data on ï¬ights and crew assignments, dose calculation and dose reporting. This is schematically depicted in Figure 1. The regulations require the assessed doses to be registered with the national dose register. Thus because there has to be data exchange between the airlines and the operator of the registry anyway, it was considered efï¬cient that the operator of the NDRIS, itself being an approved dosimetric service, would also operate the system for dose assessment. The present study discusses the requirements to be