Frantisek Spurný, Ondrej Ploc, Ivan Kovár
Department of Radiation Dosimetry, Nuclear Physics Institute, Czech Academy of Sciences, Prague, Na Truhlárce 39/64, CZ 18086 Praha 8, Czech Republic.
Radiat Prot Dosimetry. 2007;125(1-4):416-20. doi: 10.1093/rpd/ncl559. Epub 2007 Jan 19.
ICRP Publication 60 recommended that the radiation exposure due to the cosmic component at high altitudes be considered when appropriate as part of occupational exposure to the radiation. The recommendation was incorporated to the Czech regulation in 1997, and the studies on how to perform individual dosimetry of Czech companies aircraft crew started immediately. The individual monitoring values were calculated using the Transport code CARI. The results obtained since the beginning have been recalculated, now with the version 6. The information on the flight schedules and the participation of aircraft crew in the flight were received from the air company. Routine individual dosimetry had started in 1998. Main results for the period 1998-2003 are as follows: both relative frequencies, as well as, average annual effective doses vary with the company and with the year, without any evident general tendency; the average annual values of E were between 1.5 and 2 mSv; and collective effective dose increased regularly, from approximately 1.5 manSv to >2.2 manSv. More detailed analysis is presented, including the verification of the procedure by a series of onboard experimental measurements.
国际放射防护委员会第60号出版物建议，在适当情况下，应将高海拔地区宇宙射线成分造成的辐射暴露视为职业辐射暴露的一部分。该建议于1997年纳入捷克法规，随后立即开始了关于如何对捷克各公司机组人员进行个人剂量测定的研究。使用运输代码CARI计算个人监测值。自开始以来获得的结果现已用第6版重新计算。航班时刻表信息以及机组人员参与飞行的情况由航空公司提供。常规个人剂量测定于1998年开始。1998 - 2003年期间的主要结果如下：相对频率以及平均年有效剂量随公司和年份而变化，没有任何明显的总体趋势；E的年均值在1.5至2毫希沃特之间；集体有效剂量呈规律性增加，从约1.5人希沃特增至超过2.2人希沃特。还进行了更详细的分析，包括通过一系列机载实验测量对程序进行验证。
