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Search for persons.

作者信息

Vogel H

机构信息

Asklepios Klinik St. Georg, Radiology, Lohmühlenstr. 5 20099 Hamburg, Germany.

出版信息

Eur J Radiol. 2007 Aug;63(2):220-6. doi: 10.1016/j.ejrad.2007.03.038. Epub 2007 Jul 13.

DOI:10.1016/j.ejrad.2007.03.038
PMID:17630243
Abstract

X-rays and gamma-rays are used to detect hidden persons in vehicles, containers, and railway wagons. They are produced with accelerators, X-ray tubes, cobalt 60 and caesium 137. Fan beams adjusted to a line of digital detectors produce the image. The resolution is sufficient to recognise a human being. The recognition of persons with transmission images is limited by superimposition; backscatter imaging produces clearer images but of one single layer only. The future will bring new applications of search for persons with X-rays. Crimes and terrorist attacks will induce added demand for security, where search with X-rays and gamma-rays will keep its important role or even increase it.

摘要

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