This paper gives the theoretic estimate and practical measurement data of radiation field during the course of transshipment of ~(60)Co source of 20 thousands Ci. The problem of radiation safety has been discussed.

• 本文对2万居里的~(60)Co 源倒装过程中剂量场的大小提供了理论估算和实测数据,并对剂量安全问题作了初步讨论。