JPS62249639A - X-ray tube multiple x-ray ct apparatus - Google Patents

X-ray tube multiple x-ray ct apparatus

Info

Publication number
JPS62249639A
JPS62249639A JP61092250A JP9225086A JPS62249639A JP S62249639 A JPS62249639 A JP S62249639A JP 61092250 A JP61092250 A JP 61092250A JP 9225086 A JP9225086 A JP 9225086A JP S62249639 A JPS62249639 A JP S62249639A
Authority
JP
Japan
Prior art keywords
ray
ray tube
detector
tubes
ray tubes
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
Application number
JP61092250A
Other languages
Japanese (ja)
Inventor
中山 信敏
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP61092250A priority Critical patent/JPS62249639A/en
Publication of JPS62249639A publication Critical patent/JPS62249639A/en
Pending legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野) 本発明は、医療分野等に利用されるX線CT装置の改良
、特に被検体の同一部分に対して択一的に作動可能な複
数個のX線管を備えたX線CT装置に関するものである
[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention aims to improve X-ray CT equipment used in the medical field, etc. The present invention relates to an X-ray CT apparatus equipped with a plurality of operable X-ray tubes.

(従来の技術) 主に医療用に使用されるX線CT (Computer
ized 丁omography )装置の場合、検査
対象部分が絶えず動いている例えば人間の腹部のような
ケースでは、短時間曝射を必要とするので線源でおるX
線管の出力が必然的に大きくなり、その結果、線源装置
の発熱量も大ぎなものとなる。
(Prior art) X-ray CT (Computer
In the case of X-ray imaging (Ized imaging) equipment, in cases where the area to be examined is constantly moving, such as the human abdomen, short-term exposure is required, so the
The output of the radiation tube inevitably becomes large, and as a result, the amount of heat generated by the radiation source device also becomes large.

しかし乍ら、従来のこの種装置は、第7図に示すように
1個のX線管しか備えていないのが酋通であるので、線
源出力の増大化に伴うX線管の許容熱容量の不足という
ことが問題となり、これに対する処置方法に悩み続けて
来た。
However, as shown in Figure 7, conventional devices of this type are equipped with only one X-ray tube, so the allowable heat capacity of the X-ray tube increases as the source output increases. The lack of this problem has become a problem, and we have continued to worry about how to deal with it.

(発明が解決しようとする問題点) しかし、従来ケースでは、これに対する対策もないまま
に、単に連続稼働を制限する等の消極的な方法でこの問
題に対処するしかなかった。
(Problem to be Solved by the Invention) However, in the conventional case, there was no countermeasure for this problem, and the only way to deal with this problem was to take passive methods such as simply restricting continuous operation.

そのため、X線CT装置自体の稼働率乃至能率が低下す
るという事態を惹き起すことになり、これが改善策の実
現が強く要望されるに至っている。
This causes a situation in which the operating rate or efficiency of the X-ray CT apparatus itself decreases, and there is a strong demand for improvement measures.

本発明は、この事情に鑑みてなされたものでおる。The present invention has been made in view of this situation.

[発明の構成] (問題点を解決するための手段) この問題点を解決するための本発明の構成は、線源であ
るX線管を複数個設けると共に、これらX線管群のいず
れか1個を、被検体の同一部分に対して択一的に作動せ
しめるための切換手段を設置した点に存する。
[Structure of the Invention] (Means for Solving the Problem) The structure of the present invention for solving this problem is to provide a plurality of X-ray tubes as radiation sources, and to The present invention consists in that a switching means is provided for selectively operating one of the two for the same part of the subject.

(イ乍 用) この構成に基く本発明の作用は、X線CT装置の連続稼
働に伴う発熱に対するX線管の許容熱容量不足を、複数
個のX線管を択一的に作動させることによって補うよう
になしたことである。
(For I) The function of the present invention based on this configuration is to solve the insufficient allowable heat capacity of the X-ray tube against the heat generated by continuous operation of the X-ray CT device by selectively operating a plurality of X-ray tubes. This is what I did to compensate.

(実施例) 以下、図示の数実施例に基いて本発明を詳述するが、い
ずれの実施例においても、図中、1は被検体、2は回転
方向に所定の離間距離をもって配置された複数個のX線
管、3は円弧状の検出器をそれぞれ示し、更に、X線管
2と検出器3とは、互いに相対的な配置関係を保ち乍ら
、共に被検体1の回りに設定された回転面P上を回転し
得るように構成されるものとする。
(Example) The present invention will be described in detail below based on several illustrated examples. In each of the figures, 1 is a subject, and 2 is a subject placed at a predetermined distance in the rotation direction. A plurality of X-ray tubes, 3 each indicate an arc-shaped detector, and the X-ray tube 2 and the detector 3 are both set around the subject 1 while maintaining a relative arrangement relationship with each other. It is assumed that the device is configured to be able to rotate on a rotating surface P that is rotated.

第1図は本発明に基くX線CT装置の実施例の内、2個
のX線管2・2を使用した場合に係わる一実施例を示す
ものである。
FIG. 1 shows one embodiment of the X-ray CT apparatus according to the present invention, in which two X-ray tubes 2 are used.

この実施例の場合、2個のX線管2・2は検出器3に対
する相対位置を変えることなく、単に、所定の時間間隔
をもって交互に作動されることになる。尚、検出器3の
受光範囲は、それぞれのX線管2・2の曝射範囲をカバ
ーし得るような規模に設定されるが、その規模は、1個
のX線管を備えた従来型のX線CT装置のものに比べて
多少大きく設定することが望ましいとしても、X線管が
2個になったからといって、必ずしも従来型に対して2
倍の規模のものを設置する必要はない。
In this embodiment, the two X-ray tubes 2 are simply operated alternately at predetermined time intervals without changing their relative positions with respect to the detector 3. The light receiving range of the detector 3 is set to a scale that can cover the irradiation range of each X-ray tube 2. Although it is desirable to set the X-ray CT device somewhat larger than that of the conventional X-ray CT device, just because there are two X-ray tubes does not necessarily mean that the
There is no need to install something twice the size.

第2図に示すものは、2個のX線管2・2が所定の離間
距離を保ったまま、検出器3に対しても回転方向に相対
的に往復移動し得る本発明の他の実施例である。この場
合、2個のX線管2・2は検出器3に対する相対位置を
往復動的に変え乍ら、所定の時間間隔をもって交互に作
動されることになる。
What is shown in FIG. 2 is another embodiment of the present invention in which the two X-ray tubes 2 can reciprocate relative to the detector 3 in the rotational direction while maintaining a predetermined separation distance. This is an example. In this case, the two X-ray tubes 2 are operated alternately at predetermined time intervals while reciprocally changing their relative positions with respect to the detector 3.

このように構成した場合には、被検体1に対するX線管
2からの入射角がいずれも一定になるばかりでなく、検
出器3の規模も前記従来型のX線CT装置の場合と同じ
規模でよいことになり、また、その受光範囲も従来型と
同じでよいという効果を生ずる。
With this configuration, not only the incident angle from the X-ray tube 2 to the subject 1 is constant, but also the scale of the detector 3 is the same as that of the conventional X-ray CT apparatus. Moreover, the light-receiving range can be the same as that of the conventional type.

第3図に示すものは、4個のX線管2を使用する場合の
実施例で、4個のX線管2のそれぞれは、検出器3に対
しても共に相対的に回転方向へ移動可能に構成される。
What is shown in FIG. 3 is an example in which four X-ray tubes 2 are used, and each of the four X-ray tubes 2 is moved in the rotational direction relative to the detector 3 as well. configured as possible.

この場合、4個のX線管2のそれぞれは所定の時間間隔
をもって共に同一方向へ移動し乍ら、交互に曝射を行う
In this case, each of the four X-ray tubes 2 moves in the same direction at predetermined time intervals, and emit radiation alternately.

そしてこの実施例の場合にも、被検体1に対するX線管
2からの入射角がいずれも一定になるばかりでなく、検
出器3の規模も前記従来型のX線CT装置の場合と同じ
規模でよいことになり、また、その受光範囲も従来型と
同じでよいという効果を生ずる。その上、X線管の許容
熱容量不足に起因するXICT装置の稼働率制限という
事態が、更に緩和されることになる。
In the case of this embodiment as well, not only the incident angle from the X-ray tube 2 to the subject 1 is constant, but also the scale of the detector 3 is the same as that of the conventional X-ray CT apparatus. Moreover, the light-receiving range can be the same as that of the conventional type. Moreover, the situation in which the operating rate of the XICT apparatus is limited due to insufficient allowable heat capacity of the X-ray tube will be further alleviated.

第4図(a>・(b)に示すものは、2個のX線管2・
2がその回転面と直角な方向(回転面Pを挟んだ上下位
置)へ略等しい距離を隔てて、並列的に配置された場合
の他の実施例である。
The one shown in Fig. 4 (a> and (b)) consists of two X-ray tubes
2 are arranged in parallel at substantially equal distances in a direction perpendicular to the rotating surface (up and down positions across the rotating surface P).

この場合、2個のX線管2・2は検出器3に対する相対
位置を変えることなく、単に、所定の時間間隔をもって
交互に作動されることになる。
In this case, the two X-ray tubes 2 are simply operated alternately at predetermined time intervals without changing their relative positions with respect to the detector 3.

そしてこの例では、検出器3の規模は前記従来型のX線
CT装置の場合と同じ規模でよいことになる。
In this example, the scale of the detector 3 may be the same as that of the conventional X-ray CT apparatus.

第5図は(a)・(b)に示すものは、2個のX線管2
・2がその回転面Pを挟んだ上下位置に並列的に配置さ
れ、且つ、これら2個のX線管2・2が共に回転面Pと
直交する方向へ往復動可能に設けられた他の実施例であ
る。
In Fig. 5, the ones shown in (a) and (b) are two X-ray tubes 2.
- 2 are arranged in parallel above and below the rotating surface P, and these two X-ray tubes 2 are both provided so that they can reciprocate in a direction perpendicular to the rotating surface P. This is an example.

この場合、2個のX線管2・2は検出器3に対する相対
位置を上下動的に変え乍ら、所定の時間間隔をもって交
互に作動されることになる。
In this case, the two X-ray tubes 2 are operated alternately at predetermined time intervals while dynamically changing their positions relative to the detector 3 up and down.

この実施例の場合には、被検体1に対するX線管2から
の入射角がいずれも一定になるばかりでなく、検出器3
の規模も前記従来型のX線CT装置の場合と同じ規模で
よいことになり、また、その受光範囲も従来型と同じで
よいという効果を生ずる。
In the case of this embodiment, not only the incident angle from the X-ray tube 2 to the subject 1 is constant, but also the
The scale of the X-ray CT apparatus can be the same as that of the conventional X-ray CT apparatus, and the light receiving range can also be the same as that of the conventional X-ray CT apparatus.

以上の各説明においては、X線管の数を2個または4個
として説明したが、これはあくまで−例であるから、そ
の数は3個でもまた他の数でもよいことは言うまでもな
い。
In each of the above descriptions, the number of X-ray tubes has been explained as two or four, but this is just an example, and it goes without saying that the number may be three or any other number.

次に、これら実施例の作動タイミングについて、第2図
に示す[2個のX線管2・2が所定の離間距離を保った
まま検出器3に対しても回転方向に相対的に往復移動し
得る実施例]を、代表的な一例として説明する。
Next, regarding the operation timing of these embodiments, as shown in FIG. A possible embodiment] will be explained as a typical example.

第6図はこの説明のための作動タイミング図で、図中、
一方のX線管を(A>とし他方のX線管を(B)とする
FIG. 6 is an operation timing chart for explaining this, and in the figure,
Let one X-ray tube be (A>) and the other X-ray tube be (B).

先ず装置の連続稼働に際しては、最初のスキャン時には
、X線管(B)を休止状態に置いたままでX線管(A>
を所定の時間曝射するようになし、次回のスキャンでは
、両者を逆の状態、即ちX線管(A>を休止状態に置い
たままでX線管(B)を所定の時間曝射する。この場合
、切換え手段としては公知の適宜手段を用いるものとす
る。
First, during continuous operation of the device, at the time of the first scan, the X-ray tube (A>
For the next scan, the X-ray tube (B) is exposed for a predetermined time while the X-ray tube (A> is kept in a resting state). In this case, any known appropriate means shall be used as the switching means.

そして、この動作を必要スキャンの回数だけ繰返して連
続稼働をするのであるが、このように、両X線管(A>
・(B)の作動タイミングを交互に設定することにより
、従来型の1個のX線管を具備したX線CT装置の場合
では不可能であった可成りの量に亘る稼働を可能ならし
めるものである。そして、このことは従来装置では不可
能でめった効果的な診断情報の収集が可能になることを
意味するから、その有用性には図り知れないものがある
と言える。
Then, this operation is repeated as many times as necessary for continuous operation, and in this way both X-ray tubes (A>
-By alternately setting the operation timing of (B), it is possible to operate over a considerable amount of time, which was impossible with a conventional X-ray CT device equipped with one X-ray tube. It is something. Since this means that it becomes possible to collect diagnostic information that is rarely and effectively impossible with conventional devices, its usefulness can be said to be immeasurable.

以上幾つかの実施例について説明したが、本発明はこれ
に限定されるものではなく、その要旨を逸脱しない範囲
内において、種々変形実施し1qるものである。
Although several embodiments have been described above, the present invention is not limited thereto, and may be modified in various ways without departing from the spirit thereof.

例えば、切換えのタイミングとしては数スキャン毎の切
換えも可能であり、また、使用するX線管群の特性間に
違いがある場合等には、それぞれの特性に応じてスキャ
ン数を適宜割当てるように@副タイミングを設定して、
各X線管の負担を均一化させるようになすことも出来る
For example, the switching timing can be changed every few scans, and if there are differences in the characteristics of the X-ray tube groups used, the number of scans can be allocated appropriately according to the characteristics of each group. @Set the sub timing,
It is also possible to equalize the load on each X-ray tube.

[発明の効果] 以上述べた通り本発明を用いる時は、従来型の1個のX
線管を具備したX線CT装置の場合では不可能であった
可成りの長時間に亘る稼働を可能になし得るので、X線
管の許容熱容量の不足に起因する装置の稼働制限を大幅
に緩和し得るという効果を生ずる。
[Effect of the invention] As stated above, when using the present invention, one X
Since it is possible to operate for a considerable length of time, which was not possible with an X-ray CT device equipped with a ray tube, it is possible to greatly reduce the operational limitations of the device caused by the lack of allowable heat capacity of the X-ray tube. This produces a relaxing effect.

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

第1図は本発明に基〈実施例の内、2個のX線管を使用
した場合に係わる一実施例の概略配置図、第2図は2個
のX線管が所定の離間距離を保ったまま検出器に対して
回転方向に相対的に往復移動し得る他の実施例の概略配
置図、第3図は4個のXI!管を用いた他の実施例を示
す概略配置図、第4図(a)・(b)は2個のX線管を
その回転面を挟んだ上下位置に固定的に並列配置した他
の実施例の概略配置図で、(a>はその平面図を(b)
は側面図をそれぞれ示す。第5図(a)・(b)は2個
のX線管をその回転面を挟んだ上下位置に並列的に配置
し、且つ、これら2個のX線管2・2が共に回転面と直
交する方向へ往復動可能に設けた伯の実施例の概略配置
図で、(a>はその平面図を(b)は側面図をそれぞれ
示す。第6図は第2図の実施例に係わる作動タイミング
図、第7図は従来型の1個のX線管を具備したX線0丁
装置に係わる概略配置図である。 1・・・被検体      2・・・複数個のX線管3
・・・検出器      P・・・回転面代理人 弁理
±  [1リ 近 恵 佑同  大胡曲夫 2×感層 第1図 2×線管 第2図 第3図 第4図 第5図 第6図
Figure 1 is a schematic layout diagram of an embodiment based on the present invention in which two X-ray tubes are used, and Figure 2 is a schematic layout diagram of an embodiment in which two X-ray tubes are used at a predetermined distance. FIG. 3 is a schematic layout diagram of another embodiment in which the detector can be reciprocated in the rotational direction relative to the detector while being maintained. Schematic layout diagrams showing other embodiments using tubes, FIGS. 4(a) and 4(b) are other embodiments in which two X-ray tubes are fixedly arranged in parallel at upper and lower positions across the rotating surface of the tubes. In the schematic layout diagram of the example, (a> is the plan view) (b)
shows a side view, respectively. Figures 5 (a) and (b) show two X-ray tubes arranged in parallel above and below the rotating surface, and these two X-ray tubes 2 and 2 both facing the rotating surface. FIG. 6 is a schematic layout diagram of an embodiment of the rack installed so as to be able to reciprocate in orthogonal directions, (a> shows a plan view thereof, and (b) shows a side view thereof. FIG. 6 is related to the embodiment of FIG. 2. The operation timing diagram and FIG. 7 are schematic layout diagrams of a conventional X-ray device equipped with one X-ray tube. 1... Subject 2... Plural X-ray tubes 3
...Detector P...Rotating surface agent Patent attorney ± [1 Li Megumi Chika Yudo Ogo 2 x Sensing layer Fig. 1 2 x Ray tube Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6

Claims (3)

【特許請求の範囲】[Claims] (1)X線CT装置において、線源であるX線管を複数
個設けると共に、これらX線管群のいずれか1個を、被
検体の同一部分に対して択一的に作動せしめるための切
換手段を設置して成ることを特徴とするX線管多重式X
線CT装置。
(1) In an X-ray CT system, a plurality of X-ray tubes are provided as radiation sources, and any one of these X-ray tube groups is selectively activated for the same part of the subject. X-ray tube multiplex type X characterized by installing a switching means
Ray CT device.
(2)前記X線管群が2個である特許請求の範囲第1項
に記載のX線管多重式X線CT装置。
(2) The X-ray tube multiplex X-ray CT apparatus according to claim 1, wherein the X-ray tube group is two.
(3)前記X線管群が検出器と共に被検体の回りを回転
するX線管群である特許請求の範囲第1項または第2項
記載のX線管多重式X線CT装置。
(3) The X-ray tube multiplex X-ray CT apparatus according to claim 1 or 2, wherein the X-ray tube group is an X-ray tube group that rotates around the subject together with a detector.
JP61092250A 1986-04-23 1986-04-23 X-ray tube multiple x-ray ct apparatus Pending JPS62249639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61092250A JPS62249639A (en) 1986-04-23 1986-04-23 X-ray tube multiple x-ray ct apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61092250A JPS62249639A (en) 1986-04-23 1986-04-23 X-ray tube multiple x-ray ct apparatus

Publications (1)

Publication Number Publication Date
JPS62249639A true JPS62249639A (en) 1987-10-30

Family

ID=14049178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61092250A Pending JPS62249639A (en) 1986-04-23 1986-04-23 X-ray tube multiple x-ray ct apparatus

Country Status (1)

Country Link
JP (1) JPS62249639A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005237972A (en) * 2004-02-27 2005-09-08 General Electric Co <Ge> Method and system for imaging using multiple offset x-ray emission point
JP2007236777A (en) * 2006-03-10 2007-09-20 Toshiba Corp X-ray ct apparatus and control method of x-ray ct apparatus
US11969272B2 (en) 2020-06-26 2024-04-30 Koh Young Technology Inc. Computed tomography apparatus and method using plurality of light sources

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005237972A (en) * 2004-02-27 2005-09-08 General Electric Co <Ge> Method and system for imaging using multiple offset x-ray emission point
JP2007236777A (en) * 2006-03-10 2007-09-20 Toshiba Corp X-ray ct apparatus and control method of x-ray ct apparatus
US11969272B2 (en) 2020-06-26 2024-04-30 Koh Young Technology Inc. Computed tomography apparatus and method using plurality of light sources

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