JPS5717547A - Rotary anode type x-ray tube - Google Patents

Rotary anode type x-ray tube

Info

Publication number
JPS5717547A
JPS5717547A JP9062480A JP9062480A JPS5717547A JP S5717547 A JPS5717547 A JP S5717547A JP 9062480 A JP9062480 A JP 9062480A JP 9062480 A JP9062480 A JP 9062480A JP S5717547 A JPS5717547 A JP S5717547A
Authority
JP
Japan
Prior art keywords
target
ball
magnetic
ray tube
forepressure
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
JP9062480A
Other languages
Japanese (ja)
Inventor
Mototatsu Doi
Katsutoshi Arai
Kinpei Okano
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 JP9062480A priority Critical patent/JPS5717547A/en
Publication of JPS5717547A publication Critical patent/JPS5717547A/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
    • H01J35/101—Arrangements for rotating anodes, e.g. supporting means, means for greasing, means for sealing the axle or means for shielding or protecting the driving
    • H01J35/1017—Bearings for rotating anodes
    • H01J35/1024—Rolling bearings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/10—Drive means for anode (target) substrate
    • H01J2235/1093—Measures for preventing vibration

Abstract

PURPOSE:To reduce the vibration of a target in case of generation of X-ray by installing a magnetic-field generator onto the fixed part and applying a stable forepressure easily and nearly permanently to the shaft of revolution. CONSTITUTION:At the position of the fixed part 6 opposite to the counter-target side shaft end 3a of a rotary shaft 3, a magnetic-field generator 10, for example a permanent magnet is arranged. A ball bearing 5 is applied with a forepressure through the attraction of the rotary shaft 3 by the magnetic force of the magnet 10. Therefore, even if the temperature difference between on the inner and the outer rings is small, the contact positions of the inner ring and the ball and of the outer ring and the ball are kept constant, and vibration of the target can be redued.
JP9062480A 1980-07-04 1980-07-04 Rotary anode type x-ray tube Pending JPS5717547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9062480A JPS5717547A (en) 1980-07-04 1980-07-04 Rotary anode type x-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9062480A JPS5717547A (en) 1980-07-04 1980-07-04 Rotary anode type x-ray tube

Publications (1)

Publication Number Publication Date
JPS5717547A true JPS5717547A (en) 1982-01-29

Family

ID=14003633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9062480A Pending JPS5717547A (en) 1980-07-04 1980-07-04 Rotary anode type x-ray tube

Country Status (1)

Country Link
JP (1) JPS5717547A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS614346U (en) * 1984-06-15 1986-01-11 株式会社東芝 Rotating anode type X-ray tube
JP2014154497A (en) * 2013-02-13 2014-08-25 Hitachi Medical Corp X-ray tube device
WO2016080129A1 (en) * 2014-11-21 2016-05-26 株式会社日立製作所 X-ray tube device and x-ray ct device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS614346U (en) * 1984-06-15 1986-01-11 株式会社東芝 Rotating anode type X-ray tube
JPH0537395Y2 (en) * 1984-06-15 1993-09-21
JP2014154497A (en) * 2013-02-13 2014-08-25 Hitachi Medical Corp X-ray tube device
WO2016080129A1 (en) * 2014-11-21 2016-05-26 株式会社日立製作所 X-ray tube device and x-ray ct device
US10460900B2 (en) 2014-11-21 2019-10-29 Hitachi, Ltd. X-ray tube device and x-ray CT apparatus

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