The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2020
Filed:
Dec. 26, 2018
Tsinghua University, Beijing, CN;
Nuctech Company Limited, Beijing, CN;
Yigang Yang, Beijing, CN;
Dongyu Wang, Beijing, CN;
Hao Yu, Beijing, CN;
Quanwei Song, Beijing, CN;
Jianmin Li, Beijing, CN;
Weizhen Wang, Beijing, CN;
Yulan Li, Beijing, CN;
Chunguang Zong, Beijing, CN;
Qinjian Zhang, Beijing, CN;
Ming Zeng, Beijing, CN;
Zhiqiang Chen, Beijing, CN;
Yuanjing Li, Beijing, CN;
Li Zhang, Beijing, CN;
TSINGHUA UNIVERSITY, Beijing, CN;
NUCTECH COMPANY LIMITED, Beijing, CN;
Abstract
The present disclosure discloses a radiation inspection system and a radiation inspection method. The radiation inspection system comprises a radiation source and a beam modulating device. The beam modulating device comprises a first collimating structure disposed at a beam exit side of the radiation source and a second collimating structure disposed at a beam exit side of the first collimating structure. The second collimating structure is movable relative to the first collimating structure to change a relative position of the first collimating port of the first collimating structure with the second collimating port of the second collimating structure, and the beam modulating device is shifted between a first operational state in which the beam modulating device modulates an initial beam into a fan beam, and a second operational state in which the beam modulating device modulates the initial beam into a pencil beam variable in position.