孫麗娜，原培新
（東北大學機械工程與自動化學院，遼寧 沈陽 110004）
摘要：從70年代開始，對通過重要的出入口的人員所攜帶的行李物品進行安全檢查已成為國際上廣泛采用的安全措施。近年來，受到航空安全等需要的驅使，安全檢測技術得到迅速發(fā)展。在各種檢測手段中，低成本、低劑量、非接觸式、可成像的X射線安檢設備應用最為普遍。本文對X射線探測違禁品的幾種方法做了總結，闡述了單能量法、雙能量法、雙視角、CT及散射法的探測原理及優(yōu)缺點，最后對安檢技術的未來發(fā)展趨勢進行了預測。
關鍵詞：物質分類識別；X射線探測；安全檢查；有效原子序數(shù)
中圖分類號：TB98 文獻標識碼：A 文章編號：1672-4984(2006)03-0020-03
Research of detection technology in X-ray security inspection equipment
SUN Li-na, YUAN Pei-xin
(Coolege of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004,China)
Abstract: From 1970’s, inspecting luggage of passengers that get across the important passageway has become an abroad safety precaution in the word. These years, security inspection technology is developing rapidly due to the needs of airport security. In the methods of security inspection technology, low cost, low dose, non-contact, imaging X-ray security inspection equipment has been used most popularly. This paper reviews the main techniques of using X-ray to detect illicit materials. It describes the fundamental, advantages and disadvantages of material recognition in single energy system, dual energy, dual view system, CT and scatter system. Finally it gives foreground of the security inspection technology.
Key words: Object classification; X-ray detect; Security inspection; Effective atomic number
