Tsinghua University

Xincheng Xiang

Liqiang Wang

Jigang An

Jian Zheng

Zhentao Wang

Litao Li

Yibin Huang

Chunming Tan

Xiaojing Guo

Zhifang Wu

Haifeng Wu

Jianmin Tong

Peng Cong

Weidong Qiu

Yanmin Zhang

Yisi Liu

The present disclosure relates to a technical field of a security detection device, and particularly, to a security detection system, comprising one or more detection devices, wherein the detection device comprises a first ray emitter, a ray receiver, and a movable frame, wherein the first ray emitter comprises a first ray source for generating first detection rays and is provided at a bottom portion of the movable frame, so that the first detection rays can penetrate through a detected object from a bottom of the detected object; the ray receiver comprises a ray detector provided on the movable frame, for correspondingly receiving the first detection rays having penetrated through the detected object; and the movable frame is movable in a direction in which the first ray emitter and the ray receiver are capable of moving through a detection region for the detected object.

Security detection system

Gamma radiation imaging system for non-destructive inspection of the luggage contains a DR sub-system, which obtains the projected image of the luggage by translationally scanning, and a CT sub-system, which obtains the tornograph image of the luggage by rotating scanning. Said DR sub-system includes a fixed gantry, a conveyor system, a radiation source mounted on the fixed gantry, front and back collimators, and the array detector. Said CT sub-system includes a rotating gantry, a conveyor system, a radiation source mounted on the rotating gantry, front and back collimators, and the array detector, wherein, the radiation source in said CT sub-system isIr orSe radioactive isotope gamma source with high specific activity. Said gamma source is enclosed in a shield chamber with a projecting opening. The shield chamber is mounted on said rotating gantry. Said array detector is adapted for detecting gamma ray ofIr orSe radioactive isotope; The radiation source in said DR sub-system isIr orSe radioactive isotope gamma source with high specific activity, said gamma source is enclosed in a shield chamber with a projecting opening. The shield chamber is mounted on said fixed gantry. Said array detector is adapted for detecting gamma ray ofIr orSe radioactive isotope.

Gamma radiation imaging system for non-destructive inspection of the luggage

Growing community of inventors

Beijing, China

Xincheng Xiang