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GB839945A - Improvements in x-ray tubes - Google Patents

Improvements in x-ray tubes

Info

Publication number
GB839945A
GB839945A GB21341/58A GB2134158A GB839945A GB 839945 A GB839945 A GB 839945A GB 21341/58 A GB21341/58 A GB 21341/58A GB 2134158 A GB2134158 A GB 2134158A GB 839945 A GB839945 A GB 839945A
Authority
GB
United Kingdom
Prior art keywords
shield
envelope
anode
cathode
terminal
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
Application number
GB21341/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Machlett Laboratories Inc
Original Assignee
Machlett Laboratories Inc
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 Machlett Laboratories Inc filed Critical Machlett Laboratories Inc
Publication of GB839945A publication Critical patent/GB839945A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/16—Vessels; Containers; Shields associated therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/16—Vessels
    • H01J2235/165—Shielding arrangements
    • H01J2235/168—Shielding arrangements against charged particles

Landscapes

  • X-Ray Techniques (AREA)

Abstract

839,945. X-ray tubes. MACHLETT LABORATORIES Inc. July 3, 1958 [July 15, 1957], No. 21341/58. Class 39(1). An X-ray tube comprises two dielectric envelope portions connected by an annular metal terminal which surrounds the interelectrode space, the terminal carrying a shield internally of the envelope which shield also surrounds the interelectrode space, extending at least as far as the cathode and anode, and overlying the seals between the terminal and dielectric portions ; means are provided for maintaining the shield at a potential midway between those of anode and cathode. The seals and envelope are thus protected from bombardment by secondary electrons and also coldemission electrons. In Fig. 1, the shield is formed by two flanged members 53, 54 fixed to a flat ring 57 attached to a metal envelope insert 13. The ends of the shield extend well beyond the ends of the anode and cathode structures, but Fig. 6 shows a modification in which the ends of the shield are co-planar with the ends of the electrode structures. The shield of Fig. 6 also embodies a baffle 70 having a central orifice 71. The invention may be applied to either centre-grounded or end-grounded tubes.
GB21341/58A 1957-07-15 1958-07-03 Improvements in x-ray tubes Expired GB839945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US671781A US2952790A (en) 1957-07-15 1957-07-15 X-ray tubes

Publications (1)

Publication Number Publication Date
GB839945A true GB839945A (en) 1960-06-29

Family

ID=24695859

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21341/58A Expired GB839945A (en) 1957-07-15 1958-07-03 Improvements in x-ray tubes

Country Status (2)

Country Link
US (1) US2952790A (en)
GB (1) GB839945A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3411490A (en) * 1966-12-09 1968-11-19 White Motor Corp Intake port structure for internal combustion engine
GB2517671A (en) * 2013-03-15 2015-03-04 Nikon Metrology Nv X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target and rotary vacuum seal

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NL126562C (en) * 1959-06-11
DE3107949A1 (en) * 1981-03-02 1982-09-16 Siemens AG, 1000 Berlin und 8000 München X-RAY TUBES
US6215852B1 (en) * 1998-12-10 2001-04-10 General Electric Company Thermal energy storage and transfer assembly
US6570962B1 (en) * 2002-01-30 2003-05-27 Koninklijke Philips Electronics N.V. X-ray tube envelope with integral corona shield
US8275091B2 (en) 2002-07-23 2012-09-25 Rapiscan Systems, Inc. Compact mobile cargo scanning system
US7963695B2 (en) 2002-07-23 2011-06-21 Rapiscan Systems, Inc. Rotatable boom cargo scanning system
GB0812864D0 (en) 2008-07-15 2008-08-20 Cxr Ltd Coolign anode
US8223919B2 (en) 2003-04-25 2012-07-17 Rapiscan Systems, Inc. X-ray tomographic inspection systems for the identification of specific target items
GB0309387D0 (en) * 2003-04-25 2003-06-04 Cxr Ltd X-Ray scanning
US7949101B2 (en) 2005-12-16 2011-05-24 Rapiscan Systems, Inc. X-ray scanners and X-ray sources therefor
GB0309374D0 (en) * 2003-04-25 2003-06-04 Cxr Ltd X-ray sources
US8243876B2 (en) 2003-04-25 2012-08-14 Rapiscan Systems, Inc. X-ray scanners
US8451974B2 (en) 2003-04-25 2013-05-28 Rapiscan Systems, Inc. X-ray tomographic inspection system for the identification of specific target items
US9113839B2 (en) 2003-04-25 2015-08-25 Rapiscon Systems, Inc. X-ray inspection system and method
US8837669B2 (en) 2003-04-25 2014-09-16 Rapiscan Systems, Inc. X-ray scanning system
US10483077B2 (en) 2003-04-25 2019-11-19 Rapiscan Systems, Inc. X-ray sources having reduced electron scattering
GB0309371D0 (en) * 2003-04-25 2003-06-04 Cxr Ltd X-Ray tubes
GB0309383D0 (en) 2003-04-25 2003-06-04 Cxr Ltd X-ray tube electron sources
US8094784B2 (en) * 2003-04-25 2012-01-10 Rapiscan Systems, Inc. X-ray sources
US9208988B2 (en) 2005-10-25 2015-12-08 Rapiscan Systems, Inc. Graphite backscattered electron shield for use in an X-ray tube
GB0525593D0 (en) 2005-12-16 2006-01-25 Cxr Ltd X-ray tomography inspection systems
GB0309379D0 (en) 2003-04-25 2003-06-04 Cxr Ltd X-ray scanning
US6928141B2 (en) 2003-06-20 2005-08-09 Rapiscan, Inc. Relocatable X-ray imaging system and method for inspecting commercial vehicles and cargo containers
JP5128752B2 (en) * 2004-04-07 2013-01-23 日立協和エンジニアリング株式会社 Transmission X-ray tube and manufacturing method thereof
US7471764B2 (en) 2005-04-15 2008-12-30 Rapiscan Security Products, Inc. X-ray imaging system having improved weather resistance
JP2007066694A (en) * 2005-08-31 2007-03-15 Hamamatsu Photonics Kk X-ray tube
US7382862B2 (en) * 2005-09-30 2008-06-03 Moxtek, Inc. X-ray tube cathode with reduced unintended electrical field emission
US9046465B2 (en) 2011-02-24 2015-06-02 Rapiscan Systems, Inc. Optimization of the source firing pattern for X-ray scanning systems
US7737424B2 (en) * 2007-06-01 2010-06-15 Moxtek, Inc. X-ray window with grid structure
US7529345B2 (en) * 2007-07-18 2009-05-05 Moxtek, Inc. Cathode header optic for x-ray tube
US8498381B2 (en) 2010-10-07 2013-07-30 Moxtek, Inc. Polymer layer on X-ray window
EP2195860A4 (en) * 2007-09-28 2010-11-24 Univ Brigham Young X-RAY WINDOW WITH CARBON NANOTUBE FRAME
WO2009045915A2 (en) 2007-09-28 2009-04-09 Brigham Young University Carbon nanotube assembly
US9305735B2 (en) 2007-09-28 2016-04-05 Brigham Young University Reinforced polymer x-ray window
GB0803641D0 (en) 2008-02-28 2008-04-02 Rapiscan Security Products Inc Scanning systems
GB0803644D0 (en) 2008-02-28 2008-04-02 Rapiscan Security Products Inc Scanning systems
GB0809110D0 (en) 2008-05-20 2008-06-25 Rapiscan Security Products Inc Gantry scanner systems
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
US8247971B1 (en) 2009-03-19 2012-08-21 Moxtek, Inc. Resistively heated small planar filament
US7983394B2 (en) 2009-12-17 2011-07-19 Moxtek, Inc. Multiple wavelength X-ray source
US8526574B2 (en) 2010-09-24 2013-09-03 Moxtek, Inc. Capacitor AC power coupling across high DC voltage differential
US8995621B2 (en) 2010-09-24 2015-03-31 Moxtek, Inc. Compact X-ray source
US8804910B1 (en) 2011-01-24 2014-08-12 Moxtek, Inc. Reduced power consumption X-ray source
US8750458B1 (en) 2011-02-17 2014-06-10 Moxtek, Inc. Cold electron number amplifier
US8929515B2 (en) 2011-02-23 2015-01-06 Moxtek, Inc. Multiple-size support for X-ray window
US8792619B2 (en) 2011-03-30 2014-07-29 Moxtek, Inc. X-ray tube with semiconductor coating
US9076628B2 (en) 2011-05-16 2015-07-07 Brigham Young University Variable radius taper x-ray window support structure
US9174412B2 (en) 2011-05-16 2015-11-03 Brigham Young University High strength carbon fiber composite wafers for microfabrication
US8989354B2 (en) 2011-05-16 2015-03-24 Brigham Young University Carbon composite support structure
US9218933B2 (en) 2011-06-09 2015-12-22 Rapidscan Systems, Inc. Low-dose radiographic imaging system
US8817950B2 (en) 2011-12-22 2014-08-26 Moxtek, Inc. X-ray tube to power supply connector
US8761344B2 (en) 2011-12-29 2014-06-24 Moxtek, Inc. Small x-ray tube with electron beam control optics
US9072154B2 (en) 2012-12-21 2015-06-30 Moxtek, Inc. Grid voltage generation for x-ray tube
JP6385369B2 (en) 2013-01-31 2018-09-05 ラピスカン システムズ、インコーポレイテッド Transportable safety inspection system
US9177755B2 (en) 2013-03-04 2015-11-03 Moxtek, Inc. Multi-target X-ray tube with stationary electron beam position
US9184020B2 (en) 2013-03-04 2015-11-10 Moxtek, Inc. Tiltable or deflectable anode x-ray tube
US9173623B2 (en) 2013-04-19 2015-11-03 Samuel Soonho Lee X-ray tube and receiver inside mouth
US11551903B2 (en) 2020-06-25 2023-01-10 American Science And Engineering, Inc. Devices and methods for dissipating heat from an anode of an x-ray tube assembly
US11749489B2 (en) 2020-12-31 2023-09-05 Varex Imaging Corporation Anodes, cooling systems, and x-ray sources including the same
USD1058525S1 (en) * 2023-04-06 2025-01-21 GE Precision Healthcare LLC Cathode shield

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB350133A (en) * 1929-04-19 1931-06-11 C.H.F. Mueller Aktiengesellschaft
NL30953C (en) * 1930-04-16
FR718983A (en) * 1930-07-03 1932-01-30 C H F Muller A G Improvements made to electric discharge tubes
DE591463C (en) * 1930-09-09 1934-01-22 Mueller C H F Ag Gluehkathodenroehre, in the interior of which a hollow body, preferably made of glass, is provided
DE618986C (en) * 1930-10-29 1935-09-19 Aeg Fused, cylindrical double-walled roentgen tube made of glass throughout
US1920606A (en) * 1931-12-01 1933-08-01 Westinghouse Lamp Co X-ray cathode shield
US2113334A (en) * 1934-10-30 1938-04-05 Westinghouse Electric & Mfg Co X-ray tube
US2405477A (en) * 1942-08-26 1946-08-06 Gen Electric Ray-generating apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3411490A (en) * 1966-12-09 1968-11-19 White Motor Corp Intake port structure for internal combustion engine
GB2517671A (en) * 2013-03-15 2015-03-04 Nikon Metrology Nv X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target and rotary vacuum seal
US9941090B2 (en) 2013-03-15 2018-04-10 Nikon Metrology Nv X-ray source, high-voltage generator, electron beam gun, rotary target assembly, and rotary vacuum seal
US9947501B2 (en) 2013-03-15 2018-04-17 Nikon Metrology Nv X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target, and rotary vacuum seal
US9966217B2 (en) 2013-03-15 2018-05-08 Nikon Metrology Nv X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target, and rotary vacuum seal
US10008357B2 (en) 2013-03-15 2018-06-26 Nikon Metrology Nv X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target, and rotary vacuum seal
US10020157B2 (en) 2013-03-15 2018-07-10 Nikon Metrology Nv X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target, and rotary vacuum seal
US10096446B2 (en) 2013-03-15 2018-10-09 Nikon Metrology Nv X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target, and rotary vacuum seal
US10102997B2 (en) 2013-03-15 2018-10-16 Nikon Metrology Nv X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target, and rotary vacuum seal

Also Published As

Publication number Publication date
US2952790A (en) 1960-09-13

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