JPH02146749U - - Google Patents

Description

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

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３図はこの考案の電源回路の他の実施例を
示す回路構成図、第４図は従来のＸ線管装置の要
部（陰極構体）を示す断面図、第５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６図及び第７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
す断面図である。 ２……平板陰極フイラメント、６……電子ビー
ム制限孔、７……集束溝、９……回転陽極ターゲ
ツト、２１……集束電極、２１１，２１２……集
束電極単体。 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 Figure 2 is a cross-sectional view showing equipotential lines and electron trajectories in the X-ray tube device of this invention. Fig. 3 is a circuit configuration diagram showing another embodiment of the power supply circuit of this invention, Fig. 4 is a sectional view showing the main part (cathode structure) of a conventional X-ray tube device, and Fig. 5a is a conventional 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. 6 and 7 are cross-sectional views showing equipotential lines and electron trajectories in a conventional X-ray tube device. 2... Flat cathode filament, 6... Electron beam limiting hole, 7... Focusing groove, 9... Rotating anode target, 21... Focusing electrode, 211, 212... Focusing electrode alone.

Claims (1)

【実用新案登録請求の範囲】 真空外囲器内に陰極構体と回転陽極ターゲツト
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
れた集束電極とからなるＸ線管装置において、 上記集束電極は電子ビームの進行方向に複数に
分割され、且つ分割された各集束電極単体に異な
るバイアス電圧が印加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 placed in front of an emission surface, the focusing electrode is divided into a plurality of parts in the direction of movement of the electron beam, and a different bias voltage is applied to each divided focusing electrode. An X-ray tube device characterized by: