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- W1651323188 abstract "Over the past several years, x‐ray cargo inspection has experienced tremendous growth. There are several hundred systems in use world wide and a few new units are installed every week. Fielded systems are mostly located in north and West Africa, Middle East, Europe (especially Russia), East Asia, and South America. The majority of systems are powered by Varian M3, M6 or M9 Linac x‐ray sources. The spatial resolution of these systems is typically 3–5 mm, penetration ranges from around 200 mm to 450 mm of steel and contrast sensitivity is typically 1–4%. Inspection throughput ranges from about 20 trucks per hour to 200 trucks per hour. Currently the systems are primarily used to fight import tax evasion and smuggling of controlled substances. There are a few clear trends: Imaging performance has been steadily improving; a variety of systems have been developed to fit different needs; also, there is a strong effort in material discrimination, or even identification and automatic detection. The last, but not least trend is a shift to security applications. The US government has launched major efforts such as CAARS and JINII to fight nuclear threat and systems that can automatically detect a small amount of high atomic number materials are being developed. This paper only covers RF linear accelerator based X‐ray sources, which prevail in the industry. Induction accelerators (Betatrons) have some limited use in low‐end imaging systems and high duty factors sources have recently been proposed for study." @default.
- W1651323188 created "2016-06-24" @default.
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- W1651323188 date "2009-01-01" @default.
- W1651323188 modified "2023-09-26" @default.
- W1651323188 title "X-Ray Cargo Inspection: Status and Trends" @default.
- W1651323188 doi "https://doi.org/10.1063/1.3120101" @default.
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