DE930062C - Method for the kymographic recording of X-ray images - Google Patents
Method for the kymographic recording of X-ray imagesInfo
- Publication number
- DE930062C DE930062C DEST6632A DEST006632A DE930062C DE 930062 C DE930062 C DE 930062C DE ST6632 A DEST6632 A DE ST6632A DE ST006632 A DEST006632 A DE ST006632A DE 930062 C DE930062 C DE 930062C
- Authority
- DE
- Germany
- Prior art keywords
- kymographic
- recording
- ray images
- radiation
- covers
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
- G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radiography Using Non-Light Waves (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
Verfahren zur kymographischen Aufnahme von Röntgenbildern Bekannt sind. Verfahren zur kymographischer Röntgenbilder durch Verschiebung eines- Rasters -gegenüber einem Schichtträger während der Aufnahme, so d.aß Organbewegungen festgehalten werden. Beii diesen Verfahren ist Voraussetzung, da@ß der angewandte; Raster aus schma,-lem Durchblicksschlitzen und breiten, Abdeckungen besteht. Die bei diesem Verfahren angewandten Abdeckungen. bestehen, aus möglichst strahlenundurchlässigem Material. Die Folge davon ist, daß hohe Strab le,nintensiitäten angewendet werden mußtem., damit während der kurzen. Zeit, in, welcher die ungehindert durch die freien Linien hindurchtretenden Strahlen, die jeweils vorher abgedeckten Stellen, des Filmes treffen, ein vollkommenes, Bild entsteht. Diesem: Nachteil schaltet die Erfindung dadurch aus, daß die Abdeckungen für Röntgenstrahlen teildurchlässig sind und daß die Strahlemd.u!rchläs,siigkeiit soi abgestimmt und die Intensität der angewandten Strahlung so bemessen ist, daß die durch die Abdeckung geschwächte Strahlung noch unter der Empfindlichkeitsschwelle der verwendeten pholtographis,chen Schicht liegt, aber ails Vorbelichtun:g zum Aufbau des kymograph,iseh,e@n Bildie@s beiträgt: Infolge der steilen, Charakteristik photographischer Schichten entsteht bekanntlich bei schwacher Lichteinwirkung noch kein Bild. Dieses, kommt erst zustande, wenn die Strahlenintensität überschwelliig wird. Diese Überschwelligkeit tritt erst ein,, wenn di,e durch. .die schmalen; Durchbhciks:sch-l@itz,e ungehindert auftreffende S:trah.-lung den Schichtträger passiert. Es wird. also während der ganzen Dauer der Belichtung das. Bild in den Grundzügen unsichtbar aufgebaut und in seinen, Details erst vollendet, wenn; die durch die bewegten Durchblicksschlitze auftreffende Strahlung den. Schichtträger trifft. Die Teildurchlässigkeit der Abideckun.gen sowie die Intensität der aufgewendeten Strahlung müssen, soi albgestimmt sein, daß die durchzulassende Strahlung gerade noch unterschwellig bleibt, so, daß ohne die Durchblicks schlitze nur ein ganz undeutliches, stark u;nterbegichtetes Bild entstehen würde. Es ist verständlieh, daß eine solche zusätzliche Vorbleilichtung während, d:er, ganzen Dauer der Aufnahme diel für ein IZymoigramm benötigte Strahlenmenge bedeutend hexabsetz:en muß. Dies ist der technische Vorteil der angegebenem Erfindung.Process for the kymographic recording of X-ray images is known are. Method for kymographic x-ray images by shifting a grid -compared to a layer support during the recording, so that organ movements recorded will. In these procedures it is a prerequisite that the applied; Grid off consists of narrow, narrow viewing slits and wide, covers. The one with this Procedures applied covers. consist of as radio-opaque as possible Material. The consequence of this is that high intensity intensities are used had to., so during the short one. Time in which the unhindered by the free Lines penetrating rays, the previously covered areas of the film meet, a perfect picture emerges. This: disadvantage switches the invention characterized in that the covers are partially transparent to X-rays and that die Strahlemd.u! rchläs, siigkeiit soi matched and the intensity of the applied Radiation is dimensioned so that the radiation weakened by the cover still is below the sensitivity threshold of the photographic layer used, but all pre-exposure: g contributes to the construction of the kymograph, iseh, e @ n Bildie @ s: As a result the steep characteristics of photographic layers are known to arise no picture yet in weak light. This only comes about when the Radiation intensity becomes supra-threshold. This over-threshold only occurs when di, e through. .the narrow ones; Durchbhciks: sch-l @ itz, e unhindered impacting S: trah.-lung passes the layer support. It will. so during the the entire duration of the exposure. The basic features of the image are built up and invisible in its details only completed when; through the moving viewing slits incident radiation den. Layer carrier meets. The partial permeability of the coverings as well as the intensity of the radiation applied must be tuned so that the radiation to be let through remains just subliminal, so that without the Through slits only a very indistinct, strongly undersigned picture emerges would. It is understandable that such an additional pre-lead exposure d: er, for the entire duration of the exposure the amount of radiation required for an Izymoigram significant hex offset: en must. This is the technical advantage of the stated invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST6632A DE930062C (en) | 1953-06-26 | 1953-06-26 | Method for the kymographic recording of X-ray images |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST6632A DE930062C (en) | 1953-06-26 | 1953-06-26 | Method for the kymographic recording of X-ray images |
Publications (1)
Publication Number | Publication Date |
---|---|
DE930062C true DE930062C (en) | 1955-07-07 |
Family
ID=7454077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEST6632A Expired DE930062C (en) | 1953-06-26 | 1953-06-26 | Method for the kymographic recording of X-ray images |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE930062C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1080393B (en) * | 1958-09-20 | 1960-04-21 | Elektromedizinische Werkstaett | Method and grid for the kymographic recording of X-ray images |
-
1953
- 1953-06-26 DE DEST6632A patent/DE930062C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1080393B (en) * | 1958-09-20 | 1960-04-21 | Elektromedizinische Werkstaett | Method and grid for the kymographic recording of X-ray images |
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