CT security inspection system for baggage and detector arrangement thereof

US9864091B2 · kind B2 · utility

Assignee

• NUCTECH COMPANY LIMITED · CN

Inventors

• Zhiqiang Chen · Beijing, CN
• Yuanjing Li · Beijing, CN
• Li Zhang · Beijing, CN
• Jinyu Zhang · Beijing, CN
• Zhanjun Duan · Beijing, CN
• Longsong Ran · Beijing, CN
• Qingping Huang · Beijing, CN

Key dates

• Filing date: Jul 15, 2013
• Grant date: Jan 9, 2018
• Expiry date: Mar 6, 2034

Classification

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

Abstract

The present invention discloses a CT security inspection system for baggage. The CT security inspection system comprises a scanning passage through which a baggage enters and exits the CT security inspection system for baggage, an X-ray source provided at one side of the scanning passage, and, a gantry provided at an opposite side of the scanning passage, and on which a plurality of detector units are mounted. In each of the detector units, a vertex point of at least one detector unit is positioned in a detector unit distribution circle with its center at a center of the scanning passage, and the detector units are arranged successively. All the detector crystal receiving faces of the plurality of detector units are within a scope of radiating ray beams with their center at the target of the X-ray source. In each of the detector units, a connection line between a midpoint of at least one of the detector crystal receiving faces and the target of the X-ray source is normal to the corresponding detector crystal receiving face.