Nothing Special   »   [go: up one dir, main page]

GB1218079A - Improvements in x-ray tubes - Google Patents

Improvements in x-ray tubes

Info

Publication number
GB1218079A
GB1218079A GB05029/68A GB1502968A GB1218079A GB 1218079 A GB1218079 A GB 1218079A GB 05029/68 A GB05029/68 A GB 05029/68A GB 1502968 A GB1502968 A GB 1502968A GB 1218079 A GB1218079 A GB 1218079A
Authority
GB
United Kingdom
Prior art keywords
graphite
band
refractory
march
width
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
GB05029/68A
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.)
Compagnie Generale de Radiologie SA
Original Assignee
Compagnie Generale de Radiologie SA
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 Compagnie Generale de Radiologie SA filed Critical Compagnie Generale de Radiologie SA
Publication of GB1218079A publication Critical patent/GB1218079A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
    • C04B41/5133—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal with a composition mainly composed of one or more of the refractory metals
    • 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
    • H01J35/108—Substrates for and bonding of emissive target, e.g. composite structures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/80—Optical properties, e.g. transparency or reflexibility

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • X-Ray Techniques (AREA)

Abstract

1,218,079. Graphite. COMPAGNIE GENERALE DE RADIOLOGIE. 28 March, 1968 [28 March, 1967], No. 15029/68. Heading C1A. [Also in Division H1] The rotating anode of an X-ray tube comprises a dense fine-grain refractory graphite structure with an X-ray emissive band of refractory material, e.g. W or Re or their alloys, formed thereon. The graphite body, which is formed by compressing and heating fine graphite grains almost to sintering such that individual grains merge or weld, i.e. "pseudovitrifying", has a high density, an expansion coefficient similar to that of the refractory metal band, a specific gravity of 1À85 gm./cm.<SP>3</SP>, low porosity and high purity. The W or Re layer may be applied electrolytically or pyrolytically. The width of the band of emissive material is preferably equal to width of the focal spot of the impinging electrons.
GB05029/68A 1956-03-30 1968-03-28 Improvements in x-ray tubes Expired GB1218079A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1148708T 1956-03-30
FR100395A FR93507E (en) 1956-03-30 1967-03-28 Improvements to the anodes of discharge tubes and in particular to the anodes of X-ray tubes.

Publications (1)

Publication Number Publication Date
GB1218079A true GB1218079A (en) 1971-01-06

Family

ID=8627643

Family Applications (1)

Application Number Title Priority Date Filing Date
GB05029/68A Expired GB1218079A (en) 1956-03-30 1968-03-28 Improvements in x-ray tubes

Country Status (5)

Country Link
US (1) US3539859A (en)
CH (1) CH482296A (en)
FR (1) FR93507E (en)
GB (1) GB1218079A (en)
NL (1) NL6804209A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281448A (en) * 1993-08-28 1995-03-01 Quality Air Management Limited Electric motor assembly in a sealed vessel

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT284978B (en) * 1968-12-02 1970-10-12 Plansee Metallwerk Anode for X-ray tubes
AT300140B (en) * 1970-06-02 1972-07-10 Metallwerk Plansee Ag & Co Kom Rotating anode for X-ray tubes
US3887723A (en) * 1972-03-22 1975-06-03 Richard B Kaplan Method of fabrication of composite anode for rotating-anode x-ray tubes
US3969131A (en) * 1972-07-24 1976-07-13 Westinghouse Electric Corporation Coated graphite members and process for producing the same
JPS5816737B2 (en) * 1978-04-24 1983-04-01 株式会社日立製作所 Oxide cathode for electron tubes
DE2928993C2 (en) * 1979-07-18 1982-12-09 Philips Patentverwaltung Gmbh, 2000 Hamburg Process for the manufacture of an X-ray tube rotating anode
DE2941396A1 (en) * 1979-10-12 1981-04-23 Philips Patentverwaltung Gmbh, 2000 Hamburg TURNING ANODE X-RAY TUBES WITH A BASE OF GRAPHITE
DE3040719A1 (en) * 1980-10-29 1982-05-19 Philips Patentverwaltung Gmbh, 2000 Hamburg X-RAY TUBE ROTATING ANODE
US4688239A (en) * 1984-09-24 1987-08-18 The B. F. Goodrich Company Heat dissipation means for X-ray generating tubes
US5204891A (en) * 1991-10-30 1993-04-20 General Electric Company Focal track structures for X-ray anodes and method of preparation thereof
AT406205B (en) * 1997-10-30 2000-03-27 Plansee Ag METHOD FOR PRODUCING A TURNING ANODE UNIT
CN101779266A (en) * 2007-08-08 2010-07-14 皇家飞利浦电子股份有限公司 Method and apparatus for applying material to a surface of an anode of an x-ray source, anode and x-ray source
US11043352B1 (en) * 2019-12-20 2021-06-22 Varex Imaging Corporation Aligned grain structure targets, systems, and methods of forming
CN113277883A (en) * 2021-05-26 2021-08-20 中山德华芯片技术有限公司 Graphite plate and preparation method and application thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE887677C (en) * 1942-10-31 1953-08-24 Conradty Fa C Heavy duty rotating negative headlamp carbon
DE1050457B (en) * 1956-03-15 1959-02-12 Compagnie Generale De Radiologie, Paris X-ray tube with preferably rotating the high-temperature-resistant anode
NL104093C (en) * 1956-03-30
US3136907A (en) * 1961-01-05 1964-06-09 Plansee Metallwerk Anticathodes for X-ray tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281448A (en) * 1993-08-28 1995-03-01 Quality Air Management Limited Electric motor assembly in a sealed vessel

Also Published As

Publication number Publication date
CH482296A (en) 1969-11-30
FR93507E (en) 1969-04-11
US3539859A (en) 1970-11-10
NL6804209A (en) 1968-09-30

Similar Documents

Publication Publication Date Title
GB1218079A (en) Improvements in x-ray tubes
GB1414501A (en) Methods of producing x-rays using rotary anode x-ray tubes and method of producing x-ray films
GB1300477A (en) An x-ray tube
US3660053A (en) Platinum-containing x-ray target
GB1025673A (en) An anode for a high-pressure discharge lamp
NL262064A (en)
GB959673A (en) Composite materials for use in the manufacture of, for example, anodes for electronic tubes
JPS52124890A (en) X-ray tube
GB971531A (en) Thermionic electron emitter elements and their manufacture
JPS5451459A (en) Cathode of electron tube
ES336941A1 (en) Tantalum carbide or tantalum-alloy carbide filament mounting and method
JPS556770A (en) Electron gun structure for cathode-ray tube
FR2171799A5 (en) Phosphor coatings with grain-size gradient - for x-ray amplifier foils and translucent screens
GB1029506A (en) High frequency electron discharge device
GB1201172A (en) Microwave tubes and methods of fixing lossy coatings therein
GB1099655A (en) An anode plate for an x-ray tube
JPS53137660A (en) Electron gun
GB673458A (en) Improvements in electron emissive bodies, especially cold cathodes, and methods for their preparation
GB1256887A (en)
GB1314883A (en) Manufacturing target electrodes for x-ray tubes
JPS5329613A (en) Pick up tube
US1254700A (en) Anticathode.
GB1080600A (en) Improvements relating to spark gap devices
JPS52127151A (en) Electron ray indicator tube
GB776853A (en) An improved welding rod