随着人们越来越多地选择航空旅行以及对辐射知识了解的深入 ,人们开始担心 :乘飞机会受辐射危害吗 ?某些媒体甚至宣称“乘坐一次飞机 ,受紫外线辐射危害相当于做 2 0次Ｘ线检查。其实 ,大家完全不必为此担心。我们所受到的辐射主要包括来自太阳的电磁辐射、来自宇宙射线所产生 As people become more and more interested in air travel and understanding of radiation, people are beginning to worry about whether the flight will be endangered by radiation. Some media even claim that "taking an airplane and being exposed to ultraviolet radiation is equivalent to 20 X-ray examination. In fact, we do not have to worry about this. The radiation we receive mainly from the sun’s electromagnetic radiation generated by cosmic rays