JPS58142750A - Anode for rotary anode x-ray tube - Google Patents

Anode for rotary anode x-ray tube

Info

Publication number
JPS58142750A
JPS58142750A JP2285182A JP2285182A JPS58142750A JP S58142750 A JPS58142750 A JP S58142750A JP 2285182 A JP2285182 A JP 2285182A JP 2285182 A JP2285182 A JP 2285182A JP S58142750 A JPS58142750 A JP S58142750A
Authority
JP
Japan
Prior art keywords
rotary shaft
carbon
anode
target
carbon target
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.)
Granted
Application number
JP2285182A
Other languages
Japanese (ja)
Other versions
JPH0375978B2 (en
Inventor
Munetomo Kotabe
小田部　宗倫
Takehiko Mori
健彦 森
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
Hitachi Healthcare Manufacturing Ltd
Original Assignee
Hitachi Ltd
Hitachi Medical Corp
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, Hitachi Medical Corp filed Critical Hitachi Ltd
Priority to JP2285182A priority Critical patent/JPS58142750A/en
Publication of JPS58142750A publication Critical patent/JPS58142750A/en
Publication of JPH0375978B2 publication Critical patent/JPH0375978B2/ja
Granted 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 prevent a slip from being generated between a carbon target and a rotary shaft. CONSTITUTION:The internal surface of the axial fixation hole of the carbon 2 of a carbon target 1 is inserted in rotary shaft 5 through a metal coat of approximately 0.5mm. thick and the carbon target 1 is tightened on the rotary shaft 5 with a nut 7. Since the said rotary shaft 5 is normally composed of molybdenum or molybdate alloys, it is recommended that the same types of materials such as molybdenum, tungusten, or the like should be used as the said metal coat 4. When the carbon target 1 and the rotary shaft 5 are located under high temperature and high vacuum conditions during operation, the meatl coat 4 is activated under the high temperature and high vacuum conditions and both the metal coat 4 and the rotary shaft 5 generate cohesion. Consequently, since both the rotary shaft 5 and the carbon 2 are made to adhere firmly through the metal coat 4, a slip between them can be prevented from being generated.

Description

【発明の詳細な説明】 本発明は回転陽極Ｘ線管の陽極に係り、特ζこカーボン
ターゲットと回転軸との締結構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an anode of a rotating anode X-ray tube, and more particularly to a fastening structure between a carbon target and a rotating shaft.

熱蓄積材料としてカーボンを用いた回転陽極用ターゲッ
トは、従来の金属ターゲットに比較し、重量の割ｔこは
大きな蓄積熱容量のターゲットを構成することができる
。しかしながら、カーボンは周知の如く金属ｔこ比へ強
度が低く脆い材料であり、機械構成材料として用いるの
には十分な注意が必要である。A rotating anode target using carbon as a heat storage material can constitute a target with a larger storage heat capacity compared to a conventional metal target. However, as is well known, carbon is a brittle material with low strength compared to metals, and sufficient care must be taken when using it as a mechanical component material.

ターゲットを回転軸ζこ固定するには、金属ターゲット
ではターゲットと回転軸との間をビンまたはキーで固定
した上、ナツトで締付けている。カーボンターゲットで
はビンやキーを用いると応力集中により破壊するので、
切欠きは極力避ける必要がある。そこで、カーボンター
ゲットは単にナツトで締付けているのみである。一方力
−ホンは摩擦係数が小さく滑りが生じ易いので、線長し
熱応力がかかるとゆるみが生じ、カーホンターゲットと
回転軸の間で滑りが生じ、ターゲ゛ノドの回転不良が生
じる欠点があった。To fix the target on the rotating shaft, in the case of a metal target, the target and the rotating shaft are fixed with a bottle or key, and then tightened with a nut. If you use a bottle or key with a carbon target, it will break due to stress concentration, so
Notches should be avoided as much as possible. Therefore, the carbon target is simply tightened with a nut. On the other hand, the carbon fiber horn has a small coefficient of friction and is prone to slipping, so if the wire is lengthened and thermal stress is applied, it will loosen, causing slippage between the carbon target and the rotating shaft, resulting in poor rotation of the target throat. there were.

本発明の目的はカーボンターゲットと回転−１１の間に
滑りを生じない回転隣接Ｘ線管の陽極を提供することに
ある。It is an object of the present invention to provide an anode for a rotating adjacent X-ray tube that does not cause slippage between the carbon target and the rotation-11.

以下、本発明の一実施例を図により説明する。Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

カーボンターゲット】にはカーボン２にＸ線発生材料と
してタングステン３が蒸着などの手段で強固に形成され
ており、前記タングステン３ｉこｔ　子ビームが照射さ
れてＸ線を発生ずる。前記カーホンターゲット】のカー
ボン２の軸締結穴内面は１９１み０．５　ｍｍ程度の金
属被曝４を介して回転軸５１こ挿入されており、さら（
こワッシャ６を介し−Ｃナツト７でカーホンターゲット
１は回転ｔｉｌｌ　５に締付ｔｉられている。Ａｉｌ記
回転１１１１５は通常モリブデン、モリブデン合金より
なるので、前記金属被膜４はモリブデン、タングステン
などの同系材料が好ましい。In the carbon target, tungsten 3 as an X-ray generating material is firmly formed on carbon 2 by means such as vapor deposition, and the tungsten 3 i beam is irradiated to generate X-rays. The rotating shaft 51 is inserted into the inner surface of the shaft fastening hole of the carbon 2 of the above-mentioned carphone target through the metal exposure 4 of about 0.5 mm.
The carphone target 1 is rotatably tightened with a C-nut 7 through a washer 6. Since the Ail rotation 11115 is usually made of molybdenum or a molybdenum alloy, the metal coating 4 is preferably made of a similar material such as molybdenum or tungsten.

そこで、動作中にカーボンターゲット１および回転軸５
が高温高真空中におかれると、高温高真空で金属被膜４
の活性化が起り、金属被膜４と回転軸５＋［ａを生じ、
回転軸５とカーボン２は金属被膜４を介し−Ｃ強力ζこ
固着されるので、この間での滑りを防止することができ
る。Therefore, during operation, carbon target 1 and rotating shaft 5
When placed in a high temperature and high vacuum, the metal coating 4
activation occurs, producing a metal coating 4 and a rotating shaft 5+[a,
Since the rotating shaft 5 and the carbon 2 are strongly fixed to each other through the metal coating 4, slippage between them can be prevented.

本発明によれば、カーホンターゲットと回転軸の間に滑
りが生じなく、大容量のＸ線管が得られる。According to the present invention, there is no slippage between the carphone target and the rotating shaft, and a large-capacity X-ray tube can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本発明になる回転陽極Ｘ線管の陽極の一実施例を示
す要部断面図である。 １・・・カーボンターゲット、　　　４・・・金属被膜
、５・・・回転軸。 □ 　３−The figure is a sectional view of a main part showing an embodiment of an anode of a rotating anode X-ray tube according to the present invention. 1... Carbon target, 4... Metal coating, 5... Rotating shaft. □ 3-

Claims (1)

【特許請求の範囲】[Claims] カーボンターゲットの軸締結穴内面と回転軸との間に前
記回転軸と凝着を生じる金属被模を介在させてなる回転
陽極Ｘ線管の陽極。An anode for a rotating anode X-ray tube, which has a metal covering that adheres to the rotating shaft interposed between the inner surface of a shaft fastening hole of a carbon target and the rotating shaft.
JP2285182A 1982-02-17 1982-02-17 Anode for rotary anode x-ray tube Granted JPS58142750A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2285182A JPS58142750A (en) 1982-02-17 1982-02-17 Anode for rotary anode x-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2285182A JPS58142750A (en) 1982-02-17 1982-02-17 Anode for rotary anode x-ray tube

Publications (2)

Publication Number Publication Date
JPS58142750A true JPS58142750A (en) 1983-08-24
JPH0375978B2 JPH0375978B2 (en) 1991-12-04

Family

ID=12094214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2285182A Granted JPS58142750A (en) 1982-02-17 1982-02-17 Anode for rotary anode x-ray tube

Country Status (1)

Country Link
JP (1) JPS58142750A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4736400A (en) * 1986-01-09 1988-04-05 The Machlett Laboratories, Inc. Diffusion bonded x-ray target
WO2021160303A1 (en) * 2020-02-10 2021-08-19 Plansee Se Rotating x-ray anode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4736400A (en) * 1986-01-09 1988-04-05 The Machlett Laboratories, Inc. Diffusion bonded x-ray target
WO2021160303A1 (en) * 2020-02-10 2021-08-19 Plansee Se Rotating x-ray anode

Also Published As

Publication number Publication date
JPH0375978B2 (en) 1991-12-04

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