EP0104515A3 - High power rotary x-ray tube anode and method for its production - Google Patents

High power rotary x-ray tube anode and method for its production Download PDF

Info

Publication number
EP0104515A3
EP0104515A3 EP83108830A EP83108830A EP0104515A3 EP 0104515 A3 EP0104515 A3 EP 0104515A3 EP 83108830 A EP83108830 A EP 83108830A EP 83108830 A EP83108830 A EP 83108830A EP 0104515 A3 EP0104515 A3 EP 0104515A3
Authority
EP
European Patent Office
Prior art keywords
braking body
production
max
ray tube
high power
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.)
Withdrawn
Application number
EP83108830A
Other languages
German (de)
French (fr)
Other versions
EP0104515A2 (en
Inventor
Hans Dr. Pfister
Bernhard Dr. Hillenbrand
Alfred Dr. Müller
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0104515A2 publication Critical patent/EP0104515A2/en
Publication of EP0104515A3 publication Critical patent/EP0104515A3/en
Withdrawn legal-status Critical Current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
    • H01J35/105—Cooling of rotating anodes, e.g. heat emitting layers or structures

Abstract

Die Hochleistungs-Röntgendrehanode weist einen rotie­ renden, tellerförmigen Elektronen-Abbremskörper auf, der ein ein- oder mehrkomponentiges Material mit einem hohen charakteristischen Wert Z · ϑmax · √λ·p·c enthält, wobei Z die Ordnungszahl, ϑmax die maximal zulässige Temperatur, λ die Wärmeleitfähigkeit, ρ die Dichte und c die spezifische Wärme sind. Ferner ist der Abbremskörper mit Teilen aus Kohlen­ stoff wärmeleitend verbunden, die bei den auftretenden Betriebstemperaturen des Abbremskörpers ein hohes Emis­ sionsvermögen ε haben. Um die Strahlungskühlung dieser Drehanode weiter zu verbessern, ist gemäß der Erfindung vorgesehen, daß mindestens die den Elektronen (8) ausge­ setzte Vorderseite (Bereiche 5 und 6) des tellerförmigen Abbremskörpers (2) zumindest teilweise mit einer Schicht (11, 12) aus einem amorphen Kohlenstoff versehen ist, der bei den auftretenden Betriebstemperaturen des Abbrems­ körpers (2) ein Emissionsvermögen ε von mindestens 0,5 aufweist und dabei gegenüber dem röntgenaktiven Material (Schicht 9) des Abbremskörpers (2) zumindest weitgehend chemisch resistent ist. The high-performance X-ray anode has a rotating, plate-shaped electron decelerator, which is a one- or multi-component material with a high characteristic value Z · ϑ max · √ λ · p · c contains, where Z is the atomic number, ϑ max the maximum permissible temperature, λ the thermal conductivity, ρ the density and c the specific heat. Furthermore, the braking body is connected in a heat-conducting manner to parts made of carbon, which have a high emissivity ε at the operating temperatures of the braking body. In order to further improve the radiation cooling of this rotary anode, it is provided according to the invention that at least the front side (regions 5 and 6) of the electrons (8) of the plate-shaped braking body (2) is at least partially coated with a layer (11, 12) Amorphous carbon is provided, which at the operating temperatures of the braking body (2) has an emissivity ε of at least 0.5 and is at least largely chemically resistant to the X-ray active material (layer 9) of the braking body (2).

EP83108830A 1982-09-29 1983-09-07 High power rotary x-ray tube anode and method for its production Withdrawn EP0104515A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3236104 1982-09-29
DE19823236104 DE3236104A1 (en) 1982-09-29 1982-09-29 HIGH-PERFORMANCE X-RAY ANODE AND METHOD FOR THEIR PRODUCTION

Publications (2)

Publication Number Publication Date
EP0104515A2 EP0104515A2 (en) 1984-04-04
EP0104515A3 true EP0104515A3 (en) 1986-01-15

Family

ID=6174491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108830A Withdrawn EP0104515A3 (en) 1982-09-29 1983-09-07 High power rotary x-ray tube anode and method for its production

Country Status (3)

Country Link
EP (1) EP0104515A3 (en)
JP (1) JPS5981847A (en)
DE (1) DE3236104A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391223B (en) * 1987-08-03 1990-09-10 Plansee Metallwerk METHOD FOR PRODUCING A ROTATING ANODE FOR X-RAY TUBES
DE102004003370B4 (en) * 2004-01-22 2015-04-02 Siemens Aktiengesellschaft High performance anode plate for a direct cooled rotary tube
JP2005276760A (en) * 2004-03-26 2005-10-06 Shimadzu Corp X-ray generating device
CN111415852B (en) * 2020-05-06 2024-02-09 上海联影医疗科技股份有限公司 Anode assembly of X-ray tube, X-ray tube and medical imaging equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2146918A1 (en) * 1971-09-20 1973-03-22 Siemens Ag ROTARY ROTARY ANODE
GB2084124A (en) * 1980-09-15 1982-04-07 Gen Electric Improved graphite X-ray tube target
US4335327A (en) * 1978-12-04 1982-06-15 The Machlett Laboratories, Incorporated X-Ray tube target having pyrolytic amorphous carbon coating

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2146918A1 (en) * 1971-09-20 1973-03-22 Siemens Ag ROTARY ROTARY ANODE
US4335327A (en) * 1978-12-04 1982-06-15 The Machlett Laboratories, Incorporated X-Ray tube target having pyrolytic amorphous carbon coating
GB2084124A (en) * 1980-09-15 1982-04-07 Gen Electric Improved graphite X-ray tube target

Also Published As

Publication number Publication date
EP0104515A2 (en) 1984-04-04
DE3236104A1 (en) 1984-03-29
JPS5981847A (en) 1984-05-11

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): DE FR GB NL

17P Request for examination filed

Effective date: 19841217

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): DE FR GB NL

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19860716

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HILLENBRAND, BERNHARD, DR.

Inventor name: PFISTER, HANS, DR.

Inventor name: MUELLER, ALFRED, DR.