Method for inspecting object using multi-energy radiations and apparatus thereof

US7580505B2 · kind B2 · utility

Assignees

• TSINGHUA UNIVERSITY · CN
• NUCTECH COMPANY LIMITED · CN

Inventors

• Kejun Kang · Beijing, CN
• Haifeng Hu · Beijing, CN
• Zhiqiang Chen · Beijing, CN
• Yuanjing Li · Beijing, CN
• Xuewu Wang · Beijing, CN
• Chuanxiang Tang · Beijing, CN
• Liming Wang · Beijing, CN
• Yinong Liu · Beijing, CN
• Yaohong Liu · Beijing, CN
• Li Zhang · Beijing, CN
• Jianmin Li · Beijing, CN
• Huaqiang Zhong · Beijing, CN
• Jianping Cheng · Beijing, CN
• Huaibi Chen · Beijing, CN
• Hua Peng · Beijing, CN
• Yali Xie · Beijing, CN
• Junli Li · Beijing, CN
• Ning Kang · Morrisville, US
• Qinghua Li · Sunnyvale, US

Key dates

• Filing date: Dec 29, 2006
• Grant date: Aug 25, 2009
• Expiry date: Jun 27, 2027

Classification

• Technology area (CPC G): Physics
• CPC primary: G01V5/224
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present invention discloses a method for inspecting an object using multi-energy radiations and an apparatus thereof. The method comprises the steps of: causing multi-energy radiations to interact with an object under inspection; detecting and recording detection values after an interaction between the multi-energy radiations and the object under inspection; substituting a portion of the detection values into a predetermined calibration function to obtain information comprising primary material attribute; and determining further material attributes of the object by applying a set of functions suitable for a energy band corresponding to the information. The present invention is applicable to the large container cargo inspection without opening containers at customs, ports and airports.