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:
Oct. 10, 2017
Filed:
Dec. 20, 2013
Tsinghua University, Tsinghua Yuan, Haidian District, Beijing, CN;
Nuctech Company Limited, Shangqinglu, Haidian District, Beijing, CN;
Yuanjing Li, Beijing, CN;
Yaohong Liu, Beijing, CN;
Jinsheng Liu, Beijing, CN;
Huaping Tang, Beijing, CN;
Chuanxiang Tang, Beijing, CN;
Huaibi Chen, Beijing, CN;
Xinshui Yan, Beijing, CN;
TSINGHUA UNIVERSITY, Beijing, CN;
NUCTECH COMPANY LIMITED, Beijing, CN;
Abstract
An apparatus and method to generate distributed x-rays. A hot cathode of an electron gun is used in vacuum to generate electron beams having certain initial movement energy and speed. Periodic scanning is performed with the initial low-energy electron beams, which are thus caused to be reciprocally deflected. A current-limiting device is provided in the travel path of the electron beams along the direction of the reciprocal deflection. Through holes arranged in an array on the current-limiting device, only part of the electron beams targeting specific positions can pass to form sequential electron beam currents distributed in an array. These electron beam currents are accelerated by a high-voltage electric field to obtain high energy, bombard an anode target, and thus sequentially generate corresponding focus spots and x-rays distributed in an array at the anode target.