JP4810056B2 - 高放出ｘ線管用のカソード - Google Patents

高放出ｘ線管用のカソード Download PDF

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Publication number
JP4810056B2
JP4810056B2 JP2003281406A JP2003281406A JP4810056B2 JP 4810056 B2 JP4810056 B2 JP 4810056B2 JP 2003281406 A JP2003281406 A JP 2003281406A JP 2003281406 A JP2003281406 A JP 2003281406A JP 4810056 B2 JP4810056 B2 JP 4810056B2
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JP
Japan
Prior art keywords
cathode
emitter
backing
anode
opening
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
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JP2003281406A
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English (en)
Japanese (ja)
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JP2004063471A (ja
JP2004063471A5 (enExample
Inventor
セルジオ・ルメートル
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GE Medical Systems Global Technology Co LLC
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GE Medical Systems Global Technology Co LLC
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Publication date
Application filed by GE Medical Systems Global Technology Co LLC filed Critical GE Medical Systems Global Technology Co LLC
Publication of JP2004063471A publication Critical patent/JP2004063471A/ja
Publication of JP2004063471A5 publication Critical patent/JP2004063471A5/ja
Application granted granted Critical
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Anticipated expiration legal-status Critical
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    • 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
    • H01J35/153—Spot position control
    • 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
    • H01J35/066—Details of electron optical components, e.g. cathode cups
    • 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

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  • X-Ray Techniques (AREA)
JP2003281406A 2002-07-30 2003-07-29 高放出ｘ線管用のカソード Expired - Lifetime JP4810056B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/064,606 US6785359B2 (en) 2002-07-30 2002-07-30 Cathode for high emission x-ray tube
US10/064,606 2002-07-30

Publications (3)

Publication Number Publication Date
JP2004063471A JP2004063471A (ja) 2004-02-26
JP2004063471A5 JP2004063471A5 (enExample) 2006-09-07
JP4810056B2 true JP4810056B2 (ja) 2011-11-09

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ID=31186014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003281406A Expired - Lifetime JP4810056B2 (ja) 2002-07-30 2003-07-29 高放出ｘ線管用のカソード

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US (1) US6785359B2 (enExample)
JP (1) JP4810056B2 (enExample)
DE (1) DE10334606A1 (enExample)

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GB0812864D0 (en) 2008-07-15 2008-08-20 Cxr Ltd Coolign anode
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US9077022B2 (en) * 2004-10-29 2015-07-07 Medtronic, Inc. Lithium-ion battery
US7576481B2 (en) * 2005-06-30 2009-08-18 General Electric Co. High voltage stable cathode for x-ray tube
US9046465B2 (en) 2011-02-24 2015-06-02 Rapiscan Systems, Inc. Optimization of the source firing pattern for X-ray scanning systems
US7479798B1 (en) * 2006-05-16 2009-01-20 Altera Corporation Selectively disabled output
US7409043B2 (en) * 2006-05-23 2008-08-05 General Electric Company Method and apparatus to control radiation tube focal spot size
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US8309941B2 (en) * 2008-05-22 2012-11-13 Vladimir Balakin Charged particle cancer therapy and patient breath monitoring method and apparatus
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US9910166B2 (en) 2008-05-22 2018-03-06 Stephen L. Spotts Redundant charged particle state determination apparatus and method of use thereof
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US8519365B2 (en) * 2008-05-22 2013-08-27 Vladimir Balakin Charged particle cancer therapy imaging method and apparatus
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CN102119586B (zh) * 2008-05-22 2015-09-02 弗拉迪米尔·叶戈罗维奇·巴拉金 多场带电粒子癌症治疗方法和装置
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US8368038B2 (en) 2008-05-22 2013-02-05 Vladimir Balakin Method and apparatus for intensity control of a charged particle beam extracted from a synchrotron
US20100002842A1 (en) * 2008-07-01 2010-01-07 Bruker Axs, Inc. Cathode assembly for rapid electron source replacement in a rotating anode x-ray generator
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GB0816823D0 (en) 2008-09-13 2008-10-22 Cxr Ltd X-ray tubes
GB0901338D0 (en) 2009-01-28 2009-03-11 Cxr Ltd X-Ray tube electron sources
BRPI0924903B8 (pt) 2009-03-04 2021-06-22 Zakrytoe Aktsionernoe Obshchestvo Protom aparelho para geração de um feixe de íons negativos para uso em uma terapia por radiação de partículas carregadas e método para geração de um feixe de íons negativos para uso com terapia por radiação de partículas carregadas
US8401151B2 (en) * 2009-12-16 2013-03-19 General Electric Company X-ray tube for microsecond X-ray intensity switching
US8385506B2 (en) * 2010-02-02 2013-02-26 General Electric Company X-ray cathode and method of manufacture thereof
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US9224572B2 (en) 2012-12-18 2015-12-29 General Electric Company X-ray tube with adjustable electron beam
US9484179B2 (en) 2012-12-18 2016-11-01 General Electric Company X-ray tube with adjustable intensity profile
US9048064B2 (en) * 2013-03-05 2015-06-02 Varian Medical Systems, Inc. Cathode assembly for a long throw length X-ray tube
DE102013214393A1 (de) * 2013-07-23 2014-11-20 Siemens Aktiengesellschaft Röntgenaufnahmesystem zur differentiellen Phasenkontrast-Bildgebung eines Untersuchungsobjekts mit Phase-Stepping
US9508523B2 (en) * 2014-03-15 2016-11-29 Stellarray, Inc. Forward flux channel X-ray source
US10535491B2 (en) 2015-01-20 2020-01-14 American Science And Engineering, Inc. Dynamically adjustable focal spot
US9907981B2 (en) 2016-03-07 2018-03-06 Susan L. Michaud Charged particle translation slide control apparatus and method of use thereof
US10037863B2 (en) 2016-05-27 2018-07-31 Mark R. Amato Continuous ion beam kinetic energy dissipater apparatus and method of use thereof
KR101966794B1 (ko) * 2017-07-12 2019-08-27 (주)선재하이테크 전자 집속 개선용 엑스선관
US12183536B2 (en) 2021-12-21 2024-12-31 GE Precision Healthcare LLC X-ray cathode focusing element
US12046441B2 (en) * 2021-12-21 2024-07-23 GE Precision Healthcare LLC X-ray tube cathode focusing element
USD1104265S1 (en) 2021-12-21 2025-12-02 GE Precision Healthcare LLC Control electrode for an x-ray tube cathode
USD1104264S1 (en) 2021-12-21 2025-12-02 GE Precision Healthcare LLC Control electrode for an x-ray tube cathode

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633774B1 (fr) * 1988-07-01 1991-02-08 Gen Electric Cgr Tube a rayons x a foyer variable auto-adapte a la charge
FR2644931A1 (fr) * 1989-03-24 1990-09-28 Gen Electric Cgr Tube a rayons x a balayage avec plaques de deflexion
JPH0320766U (enExample) * 1989-07-11 1991-02-28
FR2650703B1 (fr) * 1989-08-07 1991-10-11 Gen Electric Cgr Cathode de tube a rayons x et tube ainsi obtenu
DE19510048C2 (de) * 1995-03-20 1998-05-14 Siemens Ag Röntgenröhre
US5637953A (en) * 1996-01-22 1997-06-10 American International Technologies, Inc. Cathode assembly for a line focus electron beam device
US5633907A (en) * 1996-03-21 1997-05-27 General Electric Company X-ray tube electron beam formation and focusing
US5907595A (en) * 1997-08-18 1999-05-25 General Electric Company Emitter-cup cathode for high-emission x-ray tube
US6115453A (en) * 1997-08-20 2000-09-05 Siemens Aktiengesellschaft Direct-Heated flats emitter for emitting an electron beam
US6236713B1 (en) * 1998-10-27 2001-05-22 Litton Systems, Inc. X-ray tube providing variable imaging spot size
US6438207B1 (en) * 1999-09-14 2002-08-20 Varian Medical Systems, Inc. X-ray tube having improved focal spot control
DE10025807A1 (de) * 2000-05-24 2001-11-29 Philips Corp Intellectual Pty Röntgenröhre mit Flachkathode

Also Published As

Publication number Publication date
US6785359B2 (en) 2004-08-31
JP2004063471A (ja) 2004-02-26
US20040022361A1 (en) 2004-02-05
DE10334606A1 (de) 2004-02-26

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