HK1222474A1 - 電子源、 射線源、使用了該 射線源的設備 - Google Patents

電子源、 射線源、使用了該 射線源的設備

Info

Publication number
HK1222474A1
HK1222474A1 HK16110515.7A HK16110515A HK1222474A1 HK 1222474 A1 HK1222474 A1 HK 1222474A1 HK 16110515 A HK16110515 A HK 16110515A HK 1222474 A1 HK1222474 A1 HK 1222474A1
Authority
HK
Hong Kong
Prior art keywords
source
ray source
ray
electron
electron source
Prior art date
Application number
HK16110515.7A
Other languages
English (en)
Inventor
唐華平陳志强李元景王永剛秦占峰
Original Assignee
Nuctech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nuctech Co Ltd filed Critical Nuctech Co Ltd
Publication of HK1222474A1 publication Critical patent/HK1222474A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/06—Cathodes
    • H01J35/065—Field emission, photo emission or secondary emission cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • H01J3/021—Electron guns using a field emission, photo emission, or secondary emission electron source
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/08—Anodes; Anti cathodes
    • H01J35/112—Non-rotating anodes
    • H01J35/116—Transmissive anodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/02—Constructional details
    • H05G1/04—Mounting the X-ray tube within a closed housing
    • H05G1/06—X-ray tube and at least part of the power supply apparatus being mounted within the same housing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/52—Target size or shape; Direction of electron beam, e.g. in tubes with one anode and more than one cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/30—Cold cathodes
    • H01J2201/304—Field emission cathodes
    • H01J2201/30446—Field emission cathodes characterised by the emitter material
    • H01J2201/30453—Carbon types
    • H01J2201/30469—Carbon nanotubes (CNTs)
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2203/00—Electron or ion optical arrangements common to discharge tubes or lamps
    • H01J2203/02—Electron guns
    • H01J2203/0204—Electron guns using cold cathodes, e.g. field emission cathodes
    • H01J2203/0208—Control electrodes
    • H01J2203/0212—Gate electrodes
    • H01J2203/0216—Gate electrodes characterised by the form or structure
    • H01J2203/022—Shapes or dimensions of gate openings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2203/00—Electron or ion optical arrangements common to discharge tubes or lamps
    • H01J2203/02—Electron guns
    • H01J2203/0204—Electron guns using cold cathodes, e.g. field emission cathodes
    • H01J2203/0208—Control electrodes
    • H01J2203/0212—Gate electrodes
    • H01J2203/0216—Gate electrodes characterised by the form or structure
    • H01J2203/0224—Arrangement of gate openings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2203/00—Electron or ion optical arrangements common to discharge tubes or lamps
    • H01J2203/02—Electron guns
    • H01J2203/0204—Electron guns using cold cathodes, e.g. field emission cathodes
    • H01J2203/0208—Control electrodes
    • H01J2203/0212—Gate electrodes
    • H01J2203/0236—Relative position to the emitters, cathodes or substrates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/06—Cathode assembly
    • H01J2235/062—Cold cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/06—Cathode assembly
    • H01J2235/068—Multi-cathode assembly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
    • H01J35/147—Spot size control

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • X-Ray Techniques (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Cold Cathode And The Manufacture (AREA)
HK16110515.7A 2014-08-25 2016-09-02 電子源、 射線源、使用了該 射線源的設備 HK1222474A1 (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410419359.2A CN105374654B (zh) 2014-08-25 2014-08-25 电子源、x射线源、使用了该x射线源的设备

Publications (1)

Publication Number Publication Date
HK1222474A1 true HK1222474A1 (zh) 2017-06-30

Family

ID=55376746

Family Applications (1)

Application Number Title Priority Date Filing Date
HK16110515.7A HK1222474A1 (zh) 2014-08-25 2016-09-02 電子源、 射線源、使用了該 射線源的設備

Country Status (8)

Country Link
US (1) US10014148B2 (zh)
EP (1) EP3188213A4 (zh)
JP (1) JP6523301B2 (zh)
KR (1) KR101810349B1 (zh)
CN (1) CN105374654B (zh)
HK (1) HK1222474A1 (zh)
RU (1) RU2668268C2 (zh)
WO (1) WO2016029811A1 (zh)

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US10566170B2 (en) * 2017-09-08 2020-02-18 Electronics And Telecommunications Research Institute X-ray imaging device and driving method thereof
RU2697258C1 (ru) * 2018-03-05 2019-08-13 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский университет "Московский институт электронной техники" Рентгеновский источник и способ генерации рентгеновского излучения
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CN203590580U (zh) 2013-09-18 2014-05-07 清华大学 X射线装置以及具有该x射线装置的ct设备
CN203563254U (zh) * 2013-09-18 2014-04-23 同方威视技术股份有限公司 X射线装置及具有该x射线装置的ct设备
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Also Published As

Publication number Publication date
EP3188213A4 (en) 2018-07-18
RU2016102389A3 (zh) 2018-09-27
KR101810349B1 (ko) 2017-12-18
US20170162359A1 (en) 2017-06-08
CN105374654B (zh) 2018-11-06
JP6523301B2 (ja) 2019-05-29
KR20160058931A (ko) 2016-05-25
EP3188213A1 (en) 2017-07-05
JP2016536771A (ja) 2016-11-24
RU2668268C2 (ru) 2018-09-28
CN105374654A (zh) 2016-03-02
US10014148B2 (en) 2018-07-03
WO2016029811A1 (zh) 2016-03-03
RU2016102389A (ru) 2018-09-27

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