New, low-dose 1 MeV cargo inspection system with backscatter imaging

被引：0
作者：
Sapp, WW [1 ]
Rothschild, P [1 ]
Schueller, R [1 ]
Mishin, A [1 ]
机构：
[1] American Sci & Engn, Billerica, MA 01821 USA
来源：
PENETRATING RADIATION SYSTEMS AND APPLICATIONS II | 2000年 / 4142卷
关键词：
x-ray; intermediate energy; cargo inspection; backscatter; penetration; radiation; digital images;
D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A new intermediate energy (1 MeV) x-ray source is described which uses a cw electron linear accelerator created specifically for this application. This source has been installed in the hub of a hollow-spoked rotating wheel to form a scanning beam of x-rays. As cargo is transported through the inspection tunnel at speeds up to 6" per second it is raster-scanned by this beam to form digital images of the backscattered as well as the transmitted x-rays. The system will be described in detail, and sample images of a heavily loaded 8' wide ISO container will be presented. Environmental radiation due to the x-rays scattered from the cargo itself will be discussed in the context of the tradeoffs between penetration, spatial resolution, x-ray energy, and x-ray flux.
引用
收藏
页码：169 / 174
页数：6
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