Three Types of Linacs for Customs
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چکیده
In recent years, three types of linacs have been developed for large container inspection for customs application, viz., S-Band 9MeV travelling-wave (TW) linacs, S-Band 6MeV Standing-wave (SW) linacs and XBand 2.5MeV (SW) linacs. In cooperation with Tsinghua Tongfang Co. Ltd, a series of container inspection systems has been produced. Seven sets of large container inspection systems with 9MeV TW linacs have been installed at Tianjin, Dalian, Qingdao, Shanghai, Dapeng, and Nanjing Seaport customs. These systems are called “the fixed type”. Based on our development of a compact X-band 9300MHz 2.5MeV SW linac, a novel “mobile type” large container inspection system was completed. Four sets of these systems have been installed in four customs areas. Another container inspection system with a S-Band 6MeV SW linac, installed in a simple shielding shed with cement blocks, is called “the combined type”. Four sets of these systems have been equipped in four customs areas.
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