JPH0375978B2 - - Google Patents
Info
- Publication number
- JPH0375978B2 JPH0375978B2 JP2285182A JP2285182A JPH0375978B2 JP H0375978 B2 JPH0375978 B2 JP H0375978B2 JP 2285182 A JP2285182 A JP 2285182A JP 2285182 A JP2285182 A JP 2285182A JP H0375978 B2 JPH0375978 B2 JP H0375978B2
- Authority
- JP
- Japan
- Prior art keywords
- target
- carbon
- anode
- rotating shaft
- rotating
- 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
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 19
- 229910052799 carbon Inorganic materials 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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
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、特にカ
ーボンターゲツ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 for connecting a carbon target to a rotating shaft.
熱蓄積材料としてカーボンを用いた回転陽極用
ターゲツトは、従来の金属ターゲツトに比較し、
重量の割には大きな蓄積熱容量のターゲツトを構
成することができる。しかしながら、カーボンは
周知の如く金属に比べ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。 Rotating anode targets that use carbon as a heat storage material have the following advantages compared to conventional metal targets:
A target with a large storage heat capacity relative to its weight can be constructed. However, as is well known, carbon is a brittle material with lower strength than metals, and sufficient care must be taken when using it as a mechanical component material.
ターゲツトを回転軸に固定するには、金属ター
ゲツトではターゲツトと回転軸との間をピンまた
はキーで固定した上、ナツトで締付けている。カ
ーボンターゲツトではピ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、カーボンターゲツトは単にナ
ツトで締付けているのみである。一方カーボンは
摩擦係数が小さく滑り生じ易いので、繰返し熱応
力がかかるとゆるみが生じ、カーボンターゲツト
と回転軸の間で滑りが生じ、ターゲツトの回転不
良が生じる欠点があつた。 To fix the target to the rotating shaft, in the case of a metal target, a pin or key is used to secure the target and the rotating shaft, and the target is then tightened with a nut. If a pin or key is used with a carbon target, it will break due to stress concentration, so it is necessary to avoid notches as much as possible. Therefore, the carbon target is simply tightened with a nut. On the other hand, since carbon has a small coefficient of friction and tends to slip, it becomes loose when subjected to repeated thermal stress, causing slippage between the carbon target and the rotating shaft, resulting in poor rotation of the target.
本発明の目的はカーボンターゲツトと回転軸の
間に滑りを生じない回転陽極Ｘ線管の陽極を提供
することにある。 An object of the present invention is to provide an anode for a rotating anode X-ray tube that does not cause slippage between the carbon target and the rotating shaft.
以下、本発明の一実施例を図により説明する。
カーボンターゲツト１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３に電子
ビームが照射されてＸ線を発生する。前記カーボ
ンターゲツト１のカーボン２の軸締結穴内面は厚
み0.5mm程度の金属被膜４を介して回転軸５に挿
入されており、さらにワツシヤ６を介してナツト
７でカーボンターゲツト１は回転軸５に締付けら
れている。前記回転軸５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。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
In the carbon target 1, tungsten 3 as an X-ray generating material is firmly formed on carbon 2 by means such as vapor deposition, and the tungsten 3 is irradiated with an electron beam to generate X-rays. The inner surface of the shaft fastening hole of the carbon 2 of the carbon target 1 is inserted into the rotating shaft 5 through a metal coating 4 with a thickness of about 0.5 mm, and the carbon target 1 is further connected to the rotating shaft 5 with a nut 7 through a washer 6. It is tightened. Since the rotating shaft 5 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ツト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は凝着を生じ、回転軸５とカーボン２は金
属被膜４を介して強力に固着されるので、この間
での滑りを防止することができる。 Therefore, when the carbon target 1 and the rotating shaft 5 are placed in a high temperature and high vacuum during operation, the metal coating 4 is activated in the high temperature and high vacuum, and the metal coating 4 and the rotating shaft 5 adhere to each other. 5 and the carbon 2 are strongly fixed to each other through the metal coating 4, so that slipping between them can be prevented.
本発明によれば、カーボンターゲツと回転軸の
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 carbon target and the rotating shaft, and a large-capacity X-ray tube can be obtained.
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……カーボンターゲツト、４……金属被膜、
５……回転軸。
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...Rotation axis.
Claims (1)
合して成る回転陽極Ｘ線管の陽極において、前記
カーボンターゲツトの軸締結穴の内面に高温、高
真空中で前記回転軸と凝着を生ずる金属被膜を設
けたことを特徴とする回転陽極Ｘ線管の陽極。1. In an anode of a rotating anode X-ray tube in which a rotating shaft is fitted into a shaft fastening hole of a carbon target, a metal that adheres to the rotating shaft at high temperature and high vacuum is attached to the inner surface of the shaft fastening hole of the carbon target. An anode of a rotating anode X-ray tube characterized by being provided with a coating.
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 JPS58142750A (en) | 1983-08-24 |
| JPH0375978B2 true 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021160303A1 (en) * | 2020-02-10 | 2021-08-19 | Plansee Se | Rotating x-ray anode |
Families Citing this family (1)
| 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 |
-
1982
- 1982-02-17 JP JP2285182A patent/JPS58142750A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021160303A1 (en) * | 2020-02-10 | 2021-08-19 | Plansee Se | Rotating x-ray anode |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58142750A (en) | 1983-08-24 |
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