JPS5895726A - X-ray image forming device - Google Patents
X-ray image forming deviceInfo
- Publication number
- JPS5895726A JPS5895726A JP56194938A JP19493881A JPS5895726A JP S5895726 A JPS5895726 A JP S5895726A JP 56194938 A JP56194938 A JP 56194938A JP 19493881 A JP19493881 A JP 19493881A JP S5895726 A JPS5895726 A JP S5895726A
- Authority
- JP
- Japan
- Prior art keywords
- rays
- ray
- film
- image forming
- image
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000001235 sensitizing effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 10
- 239000000839 emulsion Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/48—Diagnostic techniques
- A61B6/482—Diagnostic techniques involving multiple energy imaging
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Radiography Using Non-Light Waves (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はＸ線透過像の記碌装置に関し、特に線質の異な
る少なくとも２種のＸ線を同じ受量体へ多重露光する診
断装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an X-ray transmission image recording device, and more particularly to a diagnostic device that multiple-exposes the same receiver to at least two types of X-rays of different radiation quality.
以下、先ず従来の直接撮影Ｘ線記碌方法を説明した後、
本発明を説明する。第１図中ＩＦｉＸ線管球で、不図示
の電圧供給源１ｃ接続される。Below, we will first explain the conventional direct X-ray recording method, and then
The present invention will be explained. In FIG. 1, the IFi X-ray tube is connected to a voltage supply source 1c (not shown).
Ｐは被検者を示す。２は前面増感紙、４は両面に乳剤を
塗布した直接撮影用シートフィルム、５は後面増感紙で
ある。この配置でＸ線管球ｌからＸ線を曝射すると、被
検者２を透過したＸ線は、増感紙３と５でフィルムが感
応する螢光光に変換され、フィルム４上に被検者ＰのＸ
線透過総量に広じた偉を形成し、フィルムを感光させる
。P indicates the subject. 2 is a front intensifying screen, 4 is a sheet film for direct photography coated with emulsion on both sides, and 5 is a rear intensifying screen. When X-rays are emitted from the X-ray tube 1 in this arrangement, the X-rays that have passed through the subject 2 are converted into fluorescent light to which the film is sensitive by the intensifying screens 3 and 5, and are exposed on the film 4. Examiner P's X
It forms a gap that spreads through the total amount of transmitted light and exposes the film.
一方、Ｘ線撮影が行われる場合、被写体に曝射されるＸ
線の線質の差によってフィルム上に現われるＸ＊＊倫は
異なってくる。例えばいわゆる硬い線質のＸ線を当てる
と骨等の組織が曳く表われた写真となるが、軟部組織の
倫はつぶれてしまって見えない。また軟い線質のＸ線を
当てると骨等の組織は見えないが、軟部組織の儂が表わ
れた写真となる。従って、もし線質の異なるＸｌ１Ｋよ
る倫が両方表われた写真が得られれば、診断上極めて有
益である。On the other hand, when X-ray photography is performed, the X
The X** lines appearing on the film differ depending on the quality of the lines. For example, when exposed to so-called hard X-rays, tissues such as bones are clearly visible, but soft tissues are crushed and cannot be seen. Furthermore, when soft X-rays are applied, tissues such as bones cannot be seen, but the photograph shows the soft tissues themselves. Therefore, if a photograph showing both Xl1K radiation with different radiation quality could be obtained, it would be extremely useful for diagnosis.
第２図に示した方法はこの利点を生すものとして発表さ
れた。図中、１′は単相全波整流の給電されるＸＩＩ管
球、５は第１の増感紙、６は上面のみ乳剤の塗布された
第１のシートフィルムである。また７は黒色紙、８はフ
ィルター作用を持った鉛などの金属箔、９は第２の増感
紙、ｌＯは上面乳剤の第２のシートフィルムであって、
これら５乃至１００部材は互いに密接されて直ね合わさ
れる。The method shown in FIG. 2 was announced as having this advantage. In the figure, 1' is an XII tube supplied with single-phase full-wave rectification, 5 is a first intensifying screen, and 6 is a first sheet film coated with emulsion only on its upper surface. Further, 7 is black paper, 8 is a metal foil such as lead that has a filtering effect, 9 is a second intensifying screen, and IO is a second sheet film of the upper surface emulsion.
These 5 to 100 members are placed closely together and face-to-face.
以上の配置でＸ線を曝射すると、被検者Ｐを透過したＸ
線は第１の増感紙５で螢光光に換見られ、第１のシート
フィルム６上に倫を形成する。黒色紙７は、この紙の背
後に置いた金属箔８で螢光光が反射して第１のシートフ
ィルム６へ戻らない様に設けている。Ｎｌの増感紙５、
第１のシートフィルム６そして黒色紙７を通過したｘ、
ｉ＊Ｆｉ金属箔８で減弱されると共に不要波長域を透析
するフィルタリングで線質が換えられ、第２の増感紙９
へ入射し、そこでフィルムの感応する光に換られる。但
しこの光により第２のシートフィルム１０上Ｋｍが形成
されるが、この像は前記第１のシートフィルム６上に形
成された倫では現われなかった部分が現われた倫である
。When X-rays are irradiated with the above arrangement, the X-rays that pass through the subject P
The lines are converted into fluorescent light by the first intensifying screen 5 and form lines on the first sheet film 6. The black paper 7 is provided so that the fluorescent light is not reflected by the metal foil 8 placed behind the paper and returned to the first sheet film 6. Nl intensifying screen 5,
x passed through the first sheet film 6 and the black paper 7;
The radiation is attenuated by the i*Fi metal foil 8, and the quality of the radiation is changed by filtering to dialyze the unnecessary wavelength range, and the second intensifying screen 9
, where it is converted into light that the film is sensitive to. However, although Km is formed on the second sheet film 10 by this light, this image is an image in which a portion that did not appear in the image formed on the first sheet film 6 appears.
仮に第１図の装置と同じＸ線曝射量で、同じ被検者を＄
２図の装置で撮影し九とすると、従来に比べて約半分の
乳剤を塗布し九第１及び鎮２のフィルムの儂は夫々が略
半分椙度のコントラストの會となる。しかし現健したフ
ィルムを重ねてみると、第１図の装置によるＸ＊＊と同
程度のコントラストの９１になると共に異なる２つの線
質による２つの儂が重なった写真が得られる。For example, if the same X-ray exposure amount is the same as in the device shown in Figure 1, the same patient is
When photographing with the apparatus shown in FIG. 2, approximately half the amount of emulsion is applied compared to the conventional film, and the contrast of the first and second films of the ninth film is approximately half that of the conventional one. However, if you stack the existing film, you will get a picture with a contrast of 91, which is about the same as X** produced by the apparatus shown in Figure 1, and two pictures of me with two different radiation qualities are superimposed.
処でＸ１ｍ撮影装置の場合、短時間に多数のシートフィ
ルムを撮影する丸め、第２図の様に多数の部材を重ね合
わせる構成が入ると、これら部材を重ねあわせまた解放
する過程は装置を複雑和する。あるいはシートフィルム
の様に薄い受像体を使わない場合、例えばイメージイン
テンシ・ファイア−（１，Ｉ ）管上に像を形成したい
ときＫは実現が困難である。However, in the case of an X1m photographing device, if a large number of sheets of film are to be photographed in a short period of time, and a large number of members are overlapped as shown in Figure 2, the process of overlapping and releasing these members will complicate the equipment. sum up Alternatively, when a thin image receptor such as a sheet film is not used, for example, when it is desired to form an image on an image intensity fire (1, I) tube, K is difficult to realize.
本発明の目的は簡易な構造の装置を実現すること、ある
いは種々の観察、撮影装置に適用できる様にしたことで
ある。An object of the present invention is to realize a device with a simple structure, or to make it applicable to various observation and photographing devices.
第３図は本発明の一実施例を示している。FIG. 3 shows an embodiment of the invention.
符番１１ＦｉＸ線管球で、単相全波整流された電圧が加
えられる。ｔ２Ｆｉフィルタリング円盤で、第４図に平
面形態を描く通り中心から層形を成す様に区画された部
分が並んでおり、隣接する部分のＡとＢはＸ線透過特性
が異なっている。この円盤１２〇一部はＸ線の進行路を
横切、って配置するものとし、またＸ線透過特性の異な
った部分はアクリルあるいはアルミ板上に鉛、タングス
テン等の金属箔を貼付して作ることができる。１３ｉｊ
高速回転のモーターで、その回転軸は円盤１２に結合さ
れて円盤１２を回転させるが、円盤の回転速度はＸ線の
曝射時間中に多数回転する様に決めている。A single-phase full-wave rectified voltage is applied to the No. 11 Fi X-ray tube. In the t2Fi filtering disk, as shown in the plan view in FIG. 4, divided sections are lined up in a layered manner from the center, and adjacent sections A and B have different X-ray transmission characteristics. A part of this disk 120 is placed across the path of the X-rays, and parts with different X-ray transmission characteristics are placed on an acrylic or aluminum plate with metal foil made of lead, tungsten, etc. can be made. 13ij
It is a high-speed rotating motor, and its rotating shaft is connected to the disc 12 to rotate the disc 12, and the rotational speed of the disc is determined so that it rotates many times during the X-ray exposure time.
１４は前面増感紙、１５は両面に乳剤の塗布されたシー
トフィルム、１６は後面増感紙で、これらは一体く重畳
されて被検者ＰＫ近接配置する。 ゛
以上の構成で、モータ１３を駆動し、円盤１２の回転が
定常状態に達した後、Ｘ線管球１１へ給電してＸ線を曝
射すると、Ｘｌ１ｌ曝射時間の成る瞬間ＥＸ線は円盤１
１の一部人を通って被検者Ｐを曝射し、次の瞬間には部
分Ｂを通って先程とは異なった線質と成つ九Ｘ線が被検
者を曝射するものとし、作動時間中これが交互に繰や返
される。そして順次線質が交番し、また被検者Ｐを透過
したＸ線が両増感紙３と５を励起して螢光々を発生させ
、その螢光々でシートフィルム１５を前後から露光する
ので、フィルム上には部分人を通ったＸ線が明瞭に表わ
した會と部分Ｂを通り、これとは線質の異なるＸ線が明
瞭に表わした倫とが重畳して形成される。14 is a front intensifying screen, 15 is a sheet film coated with emulsion on both sides, and 16 is a rear intensifying screen, which are superimposed and placed close to the subject PK. With the above configuration, when the motor 13 is driven and the rotation of the disk 12 reaches a steady state, when power is supplied to the X-ray tube 11 and X-rays are emitted, the instantaneous EX-rays during the Xl1l exposure time are Disk 1
The patient P is exposed to X-rays through part 1, and the next moment the patient is exposed to nine X-rays with a different radiation quality from part B. , this is repeated alternately during the operating time. The quality of the rays is then alternated, and the X-rays that have passed through the subject P excites both intensifying screens 3 and 5 to generate fluorescent light, which exposes the sheet film 15 from the front and back. Therefore, on the film, there is a superimposed image of the area that is clearly represented by the X-rays that have passed through the part B and the line that is clearly represented by the X-rays that have passed through part B and have a different radiation quality.
この様にして得られたＸ線フィルムは線質の異なる２種
のＸ線で露光した写真を重ね合わせ九ものと同じになる
。The X-ray film thus obtained is the same as nine photographs exposed by two types of X-rays of different ray quality, which are superimposed.
本実施例では円盤を２つの部分に分けたが、更に多くの
部分に分ければ、線質の異なる多種のＸ線で撮影し九写
真を重ね合わせたものが得られる。また円盤上扇状部の
一方がＸ線管球を発し＋ＸＳをそのｔま通過させ他方が
Ｘ線の特定波長域を遮断する様に１扇状部の一方に金属
箔を貼ったもの、あるいは各部分が夫々異なるいはそれ
以上の部分の面積比を適当に変えることＫよって、重ね
合わせる写真の濃度比を変えることができ、特殊な診断
上有用な写真を得ることができる。なお、フィルタリン
グ手段は円盤に限られるものではか＜、平板を高速で往
復運動させてＸ線進行路中へ挿入離脱させても良風上説
明した実施例は本発明をＸ線直接撮影に応用した例であ
るが、それ以外のＸ＠＜ラー間接撮影、Ｘ線１．１．間
接撮影、Ｘ？＠電子写真撮影等に応用することができる
。In this embodiment, the disk is divided into two parts, but if it is divided into even more parts, a superimposed image of nine photographs taken with various types of X-rays of different radiation quality can be obtained. Alternatively, one fan-shaped part on the disc may emit an X-ray tube, pass +XS until that point, and the other part may block a specific wavelength range of X-rays, or each part may have a metal foil pasted on one side. By appropriately changing the area ratio of the portions where the values are different or larger, it is possible to change the density ratio of the superimposed photographs, and it is possible to obtain photographs useful for special diagnosis. Note that the filtering means is not limited to a disk; the flat plate may be inserted into and removed from the X-ray path by reciprocating at high speed.The embodiment described above applies the present invention to direct X-ray imaging. This is an example of X@<Ra indirect photography, X-ray 1.1. Indirect shot, X? @Can be applied to electronic photography, etc.
本発明によれば複雑な構造を要するととなく、線質を異
圧する２種以上のＸ線で形成した像を同じ受傷体上に形
成することができる効果があり、また写真フィルムに記
録した場合は事後の取扱いも容易になる利点がある。According to the present invention, an image formed by two or more types of X-rays with different radiation pressures can be formed on the same injured body without requiring a complicated structure, and it is also possible to record images on a photographic film. This has the advantage of making subsequent handling easier.
第１図、第２図は夫々、従来例を示す側視図、第３図は
本発明の実施例を示す側視図で、第４図は構成部材の平
面図。
図中、１１はＸ線管球、１２はフィルタリング円盤、１
３はモーター、１４は前面増感紙、１５はシートフィル
ム、１６は後面増感紙、ＡとＢ ＦｉＸ＠透過特性を異
にする部分である。1 and 2 are side views showing a conventional example, FIG. 3 is a side view showing an embodiment of the present invention, and FIG. 4 is a plan view of the constituent members. In the figure, 11 is an X-ray tube, 12 is a filtering disk, 1
3 is a motor, 14 is a front intensifying screen, 15 is a sheet film, 16 is a rear intensifying screen, and parts A and B FiX@ have different transmission characteristics.
Claims (1)
て、もしくはＸ線を受量体が感応する光に変える変換器
を介して受量体受光面上に被写体の像を形成する装置に
於いて、曝射したＸ線の透過特性とは異なる透過特性を
与える丸めの手段をＸ線の進行路中へ配置し、複数の線
質のＸ＊＊を重畳して形成することを特徴とするＸ＠倫
影形成装置 （２） 前記与えるための手段は、回転駆動器と結合
された回転軸から広がる扇状の部分である特許請求の範
囲第１項記載のＸ線像形成装置（３）前記扇状の部分と
隣接する扇状の部分との面積を変化させ九ことを特徴と
する特許請求の範囲第２項記載のＸ線像形成装置。 （４）前記与えるための手段は、被写体よりＸ線発生手
段側に配置した特許請求の範囲第１項記載のＸ線像形成
装置。[Claims] (1) X-rays are irradiated, transmitted through the subject, and placed on the light-receiving surface of the receiver using 9Xi/mK or via a converter that converts the X-rays into light that the receiver is sensitive to. In a device that forms an image of a subject, a rounding means that gives a transmission characteristic different from that of the emitted X-ray is placed in the path of the X-ray, and X** of multiple ray qualities can be X@Lin image forming device (2) characterized in that the X@Rin image forming device (2) is formed in a superimposed manner. Claim 1, wherein the providing means is a fan-shaped portion extending from a rotation shaft coupled to a rotation driver. (3) The X-ray image forming apparatus according to claim 2, characterized in that the areas of the fan-shaped portions and the adjacent fan-shaped portions are varied. (4) The X-ray image forming apparatus according to claim 1, wherein the providing means is arranged closer to the X-ray generating means than the subject.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56194938A JPS5895726A (en) | 1981-12-03 | 1981-12-03 | X-ray image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56194938A JPS5895726A (en) | 1981-12-03 | 1981-12-03 | X-ray image forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5895726A true JPS5895726A (en) | 1983-06-07 |
Family
ID=16332829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56194938A Pending JPS5895726A (en) | 1981-12-03 | 1981-12-03 | X-ray image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5895726A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6335234A (en) * | 1986-06-26 | 1988-02-15 | ベ−・ファウ・オプティシェ・インダストリ−・デ・オウデ・デルフト | Slit x-ray photographing method and apparatus |
| US5148455A (en) * | 1986-07-14 | 1992-09-15 | Hologic, Inc. | Bone densitometer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934606A (en) * | 1972-08-07 | 1974-03-30 | ||
| JPS556947A (en) * | 1978-06-30 | 1980-01-18 | Fujitsu Ltd | Periodic pulse checking system |
-
1981
- 1981-12-03 JP JP56194938A patent/JPS5895726A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934606A (en) * | 1972-08-07 | 1974-03-30 | ||
| JPS556947A (en) * | 1978-06-30 | 1980-01-18 | Fujitsu Ltd | Periodic pulse checking system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6335234A (en) * | 1986-06-26 | 1988-02-15 | ベ−・ファウ・オプティシェ・インダストリ−・デ・オウデ・デルフト | Slit x-ray photographing method and apparatus |
| US5148455A (en) * | 1986-07-14 | 1992-09-15 | Hologic, Inc. | Bone densitometer |
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