JPH0169504U

JPH0169504U -

Info

Publication number: JPH0169504U
Application number: JP1987165314U
Authority: JP
Priority date: 1987-10-30
Filing date: 1987-10-30
Publication date: 1989-05-09

Description

[Brief explanation of the drawing]

第１図は本考案によるテレビ断層撮影装置の実
施例を示すブロツク図、第２図はＸ線管球と検出
器との取付構造を示す拡大説明図、第３図はＸ線
発生器の内部構成を示すブロツク図、第４図はＸ
線発生器からのＸ線指令のシーケンスを示すタイ
ミング線図、第５図は記憶装置のフレームメモリ
にデイジタル信号を書き込む順序を示す説明図、
第６図は従来のテレビ断層撮影装置を示すブロツ
ク図、第７図は従来例における記憶装置のフレー
ムメモリにデイジタル信号を書き込む順序を示す
説明図、第８図及び第９図は従来例におけるＸ線
管球と検出器との取付構造を示す拡大説明図であ
る。２…被検体、３…検出器、４…テレビカメラ（
撮影手段）、５…Ａ／Ｄ変換器、６ａ〜６ｌ…フ
レームメモリ、７…演算装置、８…Ｄ／Ａ変換器
、９…モニタ、１０…記憶装置、１４，１５…Ｘ
線管球（Ｘ線源）、１６…モータ、１７ａ，１７
ｂ…プーリ、１８…ベルト、１９…天板、２２…
制御部、２３…Ｘ線制御器、２４…Ｘ線発生器、
２５…駆動レバー、３１…パルスエンコーダ。 Figure 1 is a block diagram showing an embodiment of the television tomography apparatus according to the present invention, Figure 2 is an enlarged explanatory diagram showing the mounting structure of the X-ray tube and detector, and Figure 3 is the inside of the X-ray generator. Block diagram showing the configuration, Figure 4 is X
A timing diagram showing the sequence of X-ray commands from the ray generator; FIG. 5 is an explanatory diagram showing the order in which digital signals are written into the frame memory of the storage device;
FIG. 6 is a block diagram showing a conventional television tomography apparatus, FIG. 7 is an explanatory diagram showing the order in which digital signals are written into the frame memory of a storage device in the conventional example, and FIGS. 8 and 9 are X in the conventional example. FIG. 3 is an enlarged explanatory diagram showing the mounting structure of the ray tube and the detector. 2...Subject, 3...Detector, 4...TV camera (
Photographing means), 5...A/D converter, 6a to 6l...frame memory, 7...computing device, 8...D/A converter, 9...monitor, 10...storage device, 14, 15...X
Ray tube (X-ray source), 16...Motor, 17a, 17
b...Pulley, 18...Belt, 19...Top plate, 22...
Control unit, 23... X-ray controller, 24... X-ray generator,
25... Drive lever, 31... Pulse encoder.

Claims

[Scope of utility model registration request]

an X-ray source, a detector arranged opposite to the X-ray source with the subject in between and converts the transmitted X-rays into visible light, a photographing means for photographing the output optical image, and the X-ray
A scanning device that changes the positional relationship between the radiation source and the detector, an A/D converter that converts the output signal of the imaging means into a digital quantity, a storage device that stores this digital signal, and a storage device that stores data from this storage device. It has an arithmetic device that reads out and processes the arithmetic signals, and a display device that converts the processed digital signals into analog signals and displays them. In a television tomography system that calculates and displays a tomographic image of an arbitrary tomographic plane parallel to the detector plane, a plurality of the above-mentioned X-ray sources are arranged at equal intervals on the circular orbit, and the above-mentioned scanning device has a plurality of these A position detecting means for detecting the position of the X-ray source is provided, and each X-ray source sequentially emits X-rays using a position detection signal from the position detecting means, and the digital signal is transmitted to the digital signal according to the emitted position. A television tomography apparatus characterized in that the television tomography apparatus is stored in a predetermined storage position of a storage device.