In the case of aircraft operating at 26 , 000 to 49 , 000 all of the cathay pacific airways fleet , euratom requires that the dosage to crew members should be assessed by computer program prediction 對于在二萬六千尺至四萬九千尺高空飛行的航機包括所有國泰飛機, euratom要求電腦程式推算機組人員的輻照量。