| 发明名称 |
Method and device for detecting moving radiation sources |
| 摘要 |
The invention provides a method for detecting a moving radiation source, the method comprising placing a plurality of radiation detectors at one or more locations; collecting information of counting rate as a function of time for each detector, computing the Fourier transform of the counting rate function for each detector and extracting from the computed Fourier transform the dynamic component of the detector response for each detector, and computing the convolution of the counting rate functions for combinations of detectors at different locations, then extracting therefrom information concerning the presence of radiation sources moving with respect to the radiation detectors. |
| 申请公布号 |
US8916832(B1) |
申请公布日期 |
2014.12.23 |
| 申请号 |
US201313972170 |
申请日期 |
2013.08.21 |
| 申请人 |
The United States of America, as Represented by the Secretary, Department of Homeland Security |
发明人 |
Albert Thomas E. |
| 分类号 |
G01T1/16;G01T1/167 |
主分类号 |
G01T1/16 |
| 代理机构 |
|
代理人 |
Ratnam Lavanya;Washington William |
| 主权项 |
1. A system for detecting a moving radiation source, the system comprising:
a) a means for obtaining independent measurements of incoming radiation; b) instrumentation for collecting information of counting rate as a function of time for each of the detectors; c) a means for determining the Fourier transform of the counting rate function for each detector and extracting from the Fourier transform the velocity of the source and the ambient radiation background for each detector, and d) an algorithm for determining the convolution of the counting rate functions for combinations of detectors at different locations and extracting therefrom information concerning the presence of the source. |
| 地址 |
Washington DC US |
