JPS57165942A - Rotary anode for x-ray tube - Google Patents

Rotary anode for x-ray tube

Info

Publication number
JPS57165942A
JPS57165942A JP4932081A JP4932081A JPS57165942A JP S57165942 A JPS57165942 A JP S57165942A JP 4932081 A JP4932081 A JP 4932081A JP 4932081 A JP4932081 A JP 4932081A JP S57165942 A JPS57165942 A JP S57165942A
Authority
JP
Japan
Prior art keywords
ray tube
axial part
revolving shaft
getter
plate
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.)
Pending
Application number
JP4932081A
Other languages
Japanese (ja)
Inventor
Ichiro Inamura
Noriyuki Sado
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4932081A priority Critical patent/JPS57165942A/en
Publication of JPS57165942A publication Critical patent/JPS57165942A/en
Pending 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

Abstract

PURPOSE:To increase the vacuum degree of an X-ray tube by preventing any temperature rise of the rotary-anode axis receiving part of the X-ray tube. CONSTITUTION:Since a heat-shielding plate 10 is fixed to a bottom part 2c of an axial part 2a of a rotor 2, and the axial part 2a has a hollow center 2b, any temperature increase of a revolving shaft 6 which might the caused by radiation heat transferred from the axial part 2a is prevented with the heat- shielding plate 10, and the radiation heat of the axial part 2a is discharged through the hollow center 2b toward a target 1. When the plate 10 is prepared from a getter member such as Ta or Zr, the plate 10 exerts getter effect when heated to 500-700 deg.C. As the result, the gas generated within the revolving shaft 6 and inside the rotor 2 is absorbed by the getter 10 after passing through a hole 11 provided in the neck part of the revolving shaft 6, and the vacuum degree of an X-ray tube is increased.
JP4932081A 1981-04-03 1981-04-03 Rotary anode for x-ray tube Pending JPS57165942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4932081A JPS57165942A (en) 1981-04-03 1981-04-03 Rotary anode for x-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4932081A JPS57165942A (en) 1981-04-03 1981-04-03 Rotary anode for x-ray tube

Publications (1)

Publication Number Publication Date
JPS57165942A true JPS57165942A (en) 1982-10-13

Family

ID=12827671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4932081A Pending JPS57165942A (en) 1981-04-03 1981-04-03 Rotary anode for x-ray tube

Country Status (1)

Country Link
JP (1) JPS57165942A (en)

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