Cobalt-60 Container Scanner  

作　　者：安继刚 周立业 刘以思 邬海峰 吴志芳 向新程 王立强 

出　　处：《Tsinghua Science and Technology》1999年第1期70-72,89,共4页清华大学学报（自然科学版（英文版）

摘　　要：his paper presents a special container scanner in which the radiation source is a conventional radiography 60 Co projector of (100 300)×3 7×10 10 Bq. With a special sensitive array detector, invented by Institute of Nuclear Energy Technology (INET) of Tsinghua University and other technical innovations, the characteristics of the 60 Co scanner qualify it for use in container inspection. Its contrast indicator (CI) and image quality indicator (IQI) for 100 mm steel are equal to 0 7% and 2 5%, respectively, and the steel penetration (SP) is about 240 mm. The 60 Co container scanner is much more economical and more reliable than those scanners using an accelerator source. Also, its penetration ability is much better than that of an X ray machine scanner. This paper presents the system design, the main difficulties and their technical solutions, the inspection characteristics and the special features of the 60 Co scanner. This paper presents a special container scanner in which the radiation source is a conventional radiography 60 Co projector of (100 300)×3 7×10 10 Bq. With a special sensitive array detector, invented by Institute of Nuclear Energy Technology (INET) of Tsinghua University and other technical innovations, the characteristics of the 60 Co scanner qualify it for use in container inspection. Its contrast indicator (CI) and image quality indicator (IQI) for 100 mm steel are equal to 0 7% and 2 5%, respectively, and the steel penetration (SP) is about 240 mm. The 60 Co container scanner is much more economical and more reliable than those scanners using an accelerator source. Also, its penetration ability is much better than that of an X ray machine scanner. This paper presents the system design, the main difficulties and their technical solutions, the inspection characteristics and the special features of the 60 Co scanner.

关 键 词：container inspection 60  Co digital radiography 

分 类 号：TL816.1[核科学技术—核技术及应用]