Pillsbury Winthrop Shaw Pittman LLP
Apparatuses and methods for generating distributed x-rays in a scanning manner
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.
NUCTECH COMPANY LIMITED TSINGHUA UNIVERSITY
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H01J H01J H01J H01J
inventional inventional additional inventional
Yuanjing Huaibi Yaohong Xinshui Jinsheng Huaping Chuanxiang
Li Chen Liu Yan Liu Tang Tang