公开(公告)号：US20180005796A1

公开(公告)日：2018-01-04

申请号：US15596303

申请日：2017-05-16

Applicant: Nanox Imaging PLC

Inventor： Koichi IIDA ,  Jun Yamasaki

IPC: H01J35/14 ,  H05G1/46 ,  H05G1/32 ,  H05G1/52 ,  H01J35/04

CPC classification number: H01J35/14 ,  H01J35/04 ,  H01J35/30 ,  H01J2235/062 ,  H05G1/32 ,  H05G1/46 ,  H05G1/52

Abstract: The X-ray tube disclosed herein includes an electron emission part including an electron emission element using a cold cathode; an anode part having an anode surface with which an electron emitted from the electron emission part collides; and a focusing structure disposed between the electron emission part and a target part disposed on the anode surface. The focusing structure has a plurality of focal point areas that are applied with a voltage in a mutually independent manner. The electron emission part has first and second electron beam emission areas that are on/off controlled in a mutually independent manner. The X-ray tube is designed in such a way that a collision area of the electron beam emitted from each of the first and second electron beam emission areas on the anode surface moves in response to a voltage applied to the focusing structure.

公开(公告)号：US20170301505A1

公开(公告)日：2017-10-19

申请号：US15472656

申请日：2017-03-29

Applicant: Nanox Imaging PLC

Inventor： Hidenori KENMOTSU ,  Hitoshi MASUYA ,  Koichi IIDA

IPC: H01J35/14 ,  H01J35/06 ,  H01J35/08 ,  H05G1/56

CPC classification number: H01J35/14 ,  G21K1/025 ,  H01J9/39 ,  H01J35/065 ,  H01J35/08 ,  H01J35/20 ,  H05G1/56

Abstract: The X-ray tube disclosed herein includes an electron emission unit including an electron emission element using a cold cathode; an anode unit disposed opposite to the electron emission unit, with which electrons emitted from the electron emission unit collide; and a focus structure disposed between the electron emission unit and a target unit disposed on a surface of the anode unit that is opposed to the electron emission unit. The electron emission unit is divided into first and second regions which can independently be turned ON/OFF. The X-ray tube is focus-designed such that collision regions, at the anode unit, of electron beams emitted from the respective first and second regions substantially coincide with each other.