JPH0287367U - - Google Patents
Info
- Publication number
- JPH0287367U JPH0287367U JP16680088U JP16680088U JPH0287367U JP H0287367 U JPH0287367 U JP H0287367U JP 16680088 U JP16680088 U JP 16680088U JP 16680088 U JP16680088 U JP 16680088U JP H0287367 U JPH0287367 U JP H0287367U
- Authority
- JP
- Japan
- Prior art keywords
- focusing
- ray tube
- tube device
- focusing electrode
- flat
- 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
Links
- 238000010894 electron beam technology Methods 0.000 claims description 3
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Description
第１図ａはこの考案の一実施例に係るＸ線管装
置の要部（集束電極）を示す平面図、同図ｂは同
図ａのｂ―ｂ線に沿つて切断し矢印方向に見た断
面図、同図ｃは同図ａのｃ―ｃ線に沿つて切断し
矢印方向に見た断面図、第２図乃至第４図はこの
考案のＸ線管装置における等電位線及び電子軌道
を示す断面図、第５図はこの考案のＸ線管装置で
得られる焦点形状を示す平面図、第６図ａはこの
考案の他の実施例に係るＸ線管装置の要部（集束
電極）を示す平面図、同図ｂは同図ａのｂ―ｂ線
に沿つて切断し矢印方向に見た断面図、同図ｃは
同図ａのｃ―ｃ線に沿つて切断し矢印方向に見た
断面図、第７図は従来のＸ線管装置の要部（陰極
構体）を示す断面図、第８図ａは従来のＸ線管装
置の集束電極を示す平面図、同図ｂは同図ａのｂ
―ｂ線に沿つて切断し矢印方向に見た断面図、同
図ｃは同図ａのｃ―ｃ線に沿つて切断し矢印方向
に見た断面図、第９図乃至第１１図は従来のＸ線
管装置における等電位線及び電子軌道を示す断面
図、第１２図は従来のＸ線管装置で得られる焦点
形状を示す平面図である。
２…平板陰極フイラメント、９…回転陽極ター
ゲツト、２１…集束電極、２２…電子ビーム制限
孔、２３…集束溝、２３ａ…中央部、２３ｂ…両
端部。
Fig. 1a is a plan view showing the main part (focusing electrode) of an X-ray tube device according to an embodiment of this invention, and Fig. 1b is a plan view taken along line bb in Fig. 1a and viewed in the direction of the arrow. Figure c is a cross-sectional view taken along line c--c in figure a and viewed in the direction of the arrow, and Figures 2 to 4 are equipotential lines and electrons in the X-ray tube device of this invention. FIG. 5 is a plan view showing the focal point shape obtained with the X-ray tube device of this invention, and FIG. 6a is a main part (focusing Figure b is a cross-sectional view taken along line bb in figure a and viewed in the direction of the arrow; figure c is a cross-sectional view taken along line c-c in figure a and viewed in the direction of the arrow. 7 is a sectional view showing the main part (cathode structure) of a conventional X-ray tube device, and FIG. 8a is a plan view showing the focusing electrode of the conventional X-ray tube device. b is b in a of the same figure
- A cross-sectional view taken along the line b and viewed in the direction of the arrow; Figure c is a cross-sectional view taken along the line c--c of Figure A and viewed in the direction of the arrow; Figures 9 to 11 are conventional FIG. 12 is a cross-sectional view showing equipotential lines and electron trajectories in the conventional X-ray tube device, and FIG. 12 is a plan view showing the focal point shape obtained with the conventional X-ray tube device. 2... Flat cathode filament, 9... Rotating anode target, 21... Focusing electrode, 22... Electron beam limiting hole, 23... Focusing groove, 23a... Central portion, 23b... Both ends.
Claims (1)
が対向して配設され、上記陰極構体が平坦な電子
放出面を有する平板陰極フイラメントと、この平
板陰極フイラメントの電子放出面の前方に配置さ
れ電子ビーム制限孔及び集束溝を有する集束電極
とからなるＸ線管装置において、 上記集束電極の集束溝の形状が、その表面部で
長手方向の中央が拡幅形状にして、且つ長手方向
の両端部が上記電子ビーム制限孔の近くで拡大し
た形状に形成され、更に該集束電極が上記平板陰
極フイラメントに対して正にバイアスされてなる
ことを特徴とするＸ線管装置。[Claims for Utility Model Registration] A flat cathode filament in which a cathode structure and a rotating anode target are disposed facing each other in a vacuum envelope, and the cathode structure has a flat electron emitting surface; In an X-ray tube device comprising a focusing electrode disposed in front of an emission surface and having an electron beam limiting hole and a focusing groove, the focusing groove of the focusing electrode has a shape such that the center in the longitudinal direction is widened at the surface thereof. , and an X-ray tube device characterized in that both ends in the longitudinal direction are formed in an enlarged shape near the electron beam restriction hole, and the focusing electrode is positively biased with respect to the flat cathode filament. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16680088U JPH0287367U (en) | 1988-12-26 | 1988-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16680088U JPH0287367U (en) | 1988-12-26 | 1988-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0287367U true JPH0287367U (en) | 1990-07-11 |
Family
ID=31454508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16680088U Pending JPH0287367U (en) | 1988-12-26 | 1988-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0287367U (en) |
-
1988
- 1988-12-26 JP JP16680088U patent/JPH0287367U/ja active Pending
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