GB1461008A - Rotating anode x-ray tube - Google Patents

Rotating anode x-ray tube

Info

Publication number
GB1461008A
GB1461008A GB4698574A GB4698574A GB1461008A GB 1461008 A GB1461008 A GB 1461008A GB 4698574 A GB4698574 A GB 4698574A GB 4698574 A GB4698574 A GB 4698574A GB 1461008 A GB1461008 A GB 1461008A
Authority
GB
United Kingdom
Prior art keywords
nosepiece
fasteners
brazed
annular
ball bearings
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
GB4698574A
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 GB1461008A publication Critical patent/GB1461008A/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
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/08—Anodes; Anti cathodes
    • H01J35/10—Rotary anodes; Arrangements for rotating anodes; Cooling rotary anodes

Landscapes

  • X-Ray Techniques (AREA)

Abstract

1461008 X-ray tubes MACHLETT LABORATORIES Inc 30 Oct 1974 [19 Nov 1973] 46985/74 Heading H1D A rotating anode X-ray tube has a rotor structure including a first annular member 52, and a target structure including a second annular member 48 attached to member 52 by screw threaded fasteners 50, axially extending nosepiece 56 and target disc 28, wherein members 48 and 52, fasteners 50 and nosepiece 56 all have coefficients of expansion within the range of 51 Î 10<SP>-7</SP>/‹ C. to 79 Î 10<SP>-7</SP>/‹ C. from 30‹ to 600‹ C. Imbalance and associated vibration and noise for example is reduced. The annular members and fasteners may be of Fe-Ni-Co alloys such as KOVAR (Registered Trade Mark) and the nosepiece may be of Mo or an alloy of Ti, Zr and Mo. Materials used preferably have low thermal conductivity and high yield strength at elevated temperatures and low vapour pressures. Also shown is inductively rotated shaft 30 mounted by ball bearings 32 within cylinder 34, rotor skirt 46 being secured to member 48, member 52 being brazed to shaft portion 54, and nosepiece 56 brazed to member 48. Central bore 62 provides a heat dam reducing conductivity to the structure and ball bearings. Prior art materials are detailed.
GB4698574A 1973-11-19 1974-10-30 Rotating anode x-ray tube Expired GB1461008A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00417464A US3855492A (en) 1973-11-19 1973-11-19 Vibration reduced x-ray anode

Publications (1)

Publication Number Publication Date
GB1461008A true GB1461008A (en) 1977-01-13

Family

ID=23654145

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4698574A Expired GB1461008A (en) 1973-11-19 1974-10-30 Rotating anode x-ray tube

Country Status (4)

Country Link
US (1) US3855492A (en)
CA (1) CA1004279A (en)
DE (1) DE2454823C2 (en)
GB (1) GB1461008A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635001A (en) * 1984-07-17 1987-01-06 U.S. Philips Corporation Bearing arrangement in a tunable magnetron

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187442A (en) * 1978-09-05 1980-02-05 General Electric Company Rotating anode X-ray tube with improved thermal capacity
JPS5778756A (en) * 1980-11-04 1982-05-17 Hitachi Ltd Rotary anode x-ray tube device
FR2569051B1 (en) * 1984-08-07 1987-01-16 Thomson Csf RADIOGENIC TUBE WITH ROTATING ANODE
US4679220A (en) * 1985-01-23 1987-07-07 Kabushiki Kaisha Toshiba X-ray tube device with a rotatable anode
US4852140A (en) * 1987-06-11 1989-07-25 Siemens Medical Systems, Inc. X-ray tube bearing arc suppressor
US4969172A (en) * 1988-08-15 1990-11-06 Machlett Labs. Inc. X-ray tube rotor structure
US4866748A (en) * 1988-08-15 1989-09-12 Varian Associates, Inc. Rotor structure brazed joint
US4935948A (en) * 1988-12-12 1990-06-19 General Electric Company X-ray tube noise reduction by mounting a ring mass
US5345492A (en) * 1993-01-04 1994-09-06 Eureka X-Ray Tube Corp. Rotating anode x-ray tube
US5425067A (en) * 1994-04-13 1995-06-13 Varian Associates, Inc. X-ray tube noise and vibration reduction
DE19858369C2 (en) * 1998-12-17 2000-10-19 Siemens Ag Rotating anode tube with a floating anode, especially for computer tomography systems
US6480571B1 (en) 2000-06-20 2002-11-12 Varian Medical Systems, Inc. Drive assembly for an x-ray tube having a rotating anode
US6693990B1 (en) 2001-05-14 2004-02-17 Varian Medical Systems Technologies, Inc. Low thermal resistance bearing assembly for x-ray device
US6751293B1 (en) 2001-10-05 2004-06-15 Varian Medical Systems, Inc. Rotary component support system
US6819742B1 (en) * 2001-12-07 2004-11-16 Varian Medical Systems, Inc. Integrated component mounting system for use in an X-ray tube
US7004635B1 (en) 2002-05-17 2006-02-28 Varian Medical Systems, Inc. Lubricated ball bearings
US6751292B2 (en) * 2002-08-19 2004-06-15 Varian Medical Systems, Inc. X-ray tube rotor assembly having augmented heat transfer capability
US7190765B2 (en) * 2004-07-26 2007-03-13 General Electric Company Bearing temperature and focal spot position controlled anode for a CT system
US9159523B2 (en) 2007-08-28 2015-10-13 General Electric Company Tungsten oxide coated X-ray tube frame and anode assembly
US20090060139A1 (en) * 2007-08-28 2009-03-05 Subraya Madhusudhana T Tungsten coated x-ray tube frame and anode assembly
US8983037B2 (en) 2009-09-30 2015-03-17 Koninklijke Philips N.V. Balancing of the rotary anode of an X-ray tube

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2216887A (en) * 1938-11-17 1940-10-08 Machlett Lab Inc X-ray apparatus
BE440965A (en) * 1939-07-13
BE448042A (en) * 1941-11-20
US2336271A (en) * 1941-12-23 1943-12-07 Machlett Lab Inc Rotary anode x-ray tube
US3591821A (en) * 1967-04-19 1971-07-06 Tokyo Shibaura Electric Co Rotary anode type x-ray generator having emitting elements which are variably spaced from the central axis of cathode
FR2080250A5 (en) * 1970-02-27 1971-11-12 Radiologie Cie Gle
DE2009538C3 (en) * 1970-02-28 1975-01-09 Siemens Ag, 1000 Berlin Und 8000 Muenchen X-ray tube rotating anode plate, which is divided into sectors by radial separating joints
DE2212058A1 (en) * 1972-03-13 1973-09-20 Siemens Ag ROTATING ANODE FOR ROSE TUBES
DE2218568A1 (en) * 1972-04-17 1973-11-08 Siemens Ag ROTARY ROTARY ANODE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635001A (en) * 1984-07-17 1987-01-06 U.S. Philips Corporation Bearing arrangement in a tunable magnetron

Also Published As

Publication number Publication date
DE2454823C2 (en) 1985-03-07
DE2454823A1 (en) 1975-06-19
US3855492A (en) 1974-12-17
CA1004279A (en) 1977-01-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921030